diff --git a/Gemfile b/Gemfile
index 2751b83..d2fceab 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,5 +2,4 @@ source "https://rubygems.org"
 
 git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
 
-# Specify your gem's dependencies in syspro.gemspec
 gemspec
diff --git a/README.md b/README.md
index abfc591..340d5c0 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,6 @@
-# Syspro
+# syspro-ruby
 
-Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file `lib/syspro`. To experiment with that code, run `bin/console` for an interactive prompt.
-
-TODO: Delete this and the text above, and describe your gem
+syspro-ruby is an adapter gem to connect to SYSPRO 7 ERP installations. You can use this gem to connect to the SYSPRO 7 WCF Service and build Ruby applications on top of your SYSPRO data.
 
 ## Installation
 
@@ -22,7 +20,57 @@ Or install it yourself as:
 
 ## Usage
 
-TODO: Write usage instructions here
+### Utilities
+
+#### Logon
+
+```rb
+user_id = Syspro::Logon.logon(username, password, company_id, company_password)
+```
+`user_id` will be a `UserId` object that contains the `guid` supplied by SYSPRO. You will use this guid to make further requests to SYSPRO.
+
+#### GetUserProfile
+
+```rb
+user_profile = Syspro::GetUserProfile.get_user_profile(guid)
+```
+`user_profile` will be a `UserProfile` object that contains the following:
+  - `company_name`
+  - `operator_code`
+  - `operator_group`
+  - `operator_email_address`
+  - `operator_location`
+  - `operator_language_code`
+  - `system_language`
+  - `accounting_date`
+  - `company_date`
+  - `default_ar_branch`
+  - `default_ap_branch`
+  - `default_bank`
+  - `default_warehouse`
+  - `default_customer`
+  - `system_site_id`
+  - `system_nationality_code`
+  - `local_currency_code`
+  - `currency_description`
+  - `default_requisition_user`
+  - `xml_to_html_transform`
+  - `css_style`
+  - `css_suffix`
+  - `decimal_format`
+  - `date_format`
+  - `functional_role`
+  - `database_type`
+  - `syspro_version`
+  - `enet_version`
+  - `syspro_server_bit_width`
+
+#### Logoff
+
+```rb
+logged_off = Syspro::Logoff.logoff(guid)
+```
+`logged_off` will be `true` if the user has been successfully logged off, and will contain an error string if an error has occured.
 
 ## Development
 
@@ -32,7 +80,7 @@ To install this gem onto your local machine, run `bundle exec rake install`. To 
 
 ## Contributing
 
-Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/syspro. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [Contributor Covenant](http://contributor-covenant.org) code of conduct.
+Bug reports and pull requests are welcome on GitHub at https://github.com/ike/syspro-ruby. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [Contributor Covenant](http://contributor-covenant.org) code of conduct.
 
 ## License
 
@@ -40,4 +88,4 @@ The gem is available as open source under the terms of the [MIT License](https:/
 
 ## Code of Conduct
 
-Everyone interacting in the Syspro project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/[USERNAME]/syspro/blob/master/CODE_OF_CONDUCT.md).
+Everyone interacting in the Syspro project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/ike/syspro-ruby/blob/master/CODE_OF_CONDUCT.md).
diff --git a/bin/console b/bin/console
index 8cd9ffd..151318a 100755
--- a/bin/console
+++ b/bin/console
@@ -2,13 +2,6 @@
 
 require "bundler/setup"
 require "syspro"
+require "pry"
 
-# You can add fixtures and/or initialization code here to make experimenting
-# with your gem easier. You can also use a different console, if you like.
-
-# (If you use this, don't forget to add pry to your Gemfile!)
-# require "pry"
-# Pry.start
-
-require "irb"
-IRB.start(__FILE__)
+Pry.start
diff --git a/bin/setup b/bin/setup
index dce67d8..cf4ad25 100755
--- a/bin/setup
+++ b/bin/setup
@@ -4,5 +4,3 @@ IFS=$'\n\t'
 set -vx
 
 bundle install
-
-# Do any other automated setup that you need to do here
diff --git a/lib/syspro.rb b/lib/syspro.rb
index 2d65040..c7b64a8 100644
--- a/lib/syspro.rb
+++ b/lib/syspro.rb
@@ -5,6 +5,7 @@ require "logger"
 require "openssl"
 
 require "syspro/api_resource"
+require "syspro/errors"
 require "syspro/get_logon_profile"
 require "syspro/get_version"
 require "syspro/logoff"
diff --git a/lib/syspro/api_resource.rb b/lib/syspro/api_resource.rb
index 2b32984..1858f7f 100644
--- a/lib/syspro/api_resource.rb
+++ b/lib/syspro/api_resource.rb
@@ -16,13 +16,6 @@ module Syspro
       "/#{CGI.escape(class_name.downcase)}"
     end
 
-    def resource_url
-      #unless (id = self["id"])
-        #raise InvalidRequestError.new("Could not determine which URL to request: #{self.class} instance has invalid ID: #{id.inspect}", "id")
-      #end
-      #"#{self.class.resource_url}/#{CGI.escape(id)}"
-    end
-
     def refresh
       resp, opts = request(:get, resource_url, @retrieve_params)
       initialize_from(resp.data, opts)
diff --git a/lib/syspro/errors.rb b/lib/syspro/errors.rb
new file mode 100644
index 0000000..7515992
--- /dev/null
+++ b/lib/syspro/errors.rb
@@ -0,0 +1,34 @@
+module Syspro
+  class SysproError < StandardError
+    attr_reader :message, :response, :code, :http_body, :http_headers,
+                :http_status, :data, :request_id
+
+    # Initializes a SysproError.
+    def initialize(message = nil, http_status: nil, http_body: nil, data: nil,
+                   http_headers: nil, code: nil)
+      @message = message
+      @http_status = http_status
+      @http_body = http_body
+      @http_headers = http_headers || {}
+      @data = data
+      @code = code
+      @request_id = @http_headers[:request_id]
+    end
+
+    def to_s
+      status_string = @http_status.nil? ? "" : "(Status #{@http_status}) "
+      id_string = @request_id.nil? ? "" : "(Request #{@request_id}) "
+      "#{status_string}#{id_string}#{@message}"
+    end
+  end
+
+  class AuthenticationError < SysproError
+  end
+
+  class ApiConnectionError < SysproError
+  end
+
+  class ApiError < SysproError
+  end
+
+end
diff --git a/lib/syspro/syspro_client.rb b/lib/syspro/syspro_client.rb
index 99e10f9..4532b51 100644
--- a/lib/syspro/syspro_client.rb
+++ b/lib/syspro/syspro_client.rb
@@ -40,6 +40,7 @@ module Syspro
           c.adapter Faraday.default_adapter
         end
 
+        # For now, we're not verifying SSL certificates. The warning will appear.
         #if Syspro.verify_ssl_certs
           #conn.ssl.verify = true
           #conn.ssl.cert_store = Syspro.ca_store
@@ -129,7 +130,7 @@ module Syspro
     end
 
     def general_api_error(status, body)
-      APIError.new("Invalid response object from API: #{body.inspect} " \
+      ApiError.new("Invalid response object from API: #{body.inspect} " \
                    "(HTTP response code was #{status})",
                    http_status: status, http_body: body)
     end
diff --git a/lib/syspro/syspro_object.rb b/lib/syspro/syspro_object.rb
index d0eaa49..016510f 100644
--- a/lib/syspro/syspro_object.rb
+++ b/lib/syspro/syspro_object.rb
@@ -4,6 +4,14 @@ module Syspro
 
     def initialize(id = nil, opts = {})
       @opts = Util.normalize_opts(opts)
+      @original_values = {}
+      @values = {}
+
+      # This really belongs in APIResource, but not putting it there allows us
+      # to have a unified inspect method
+      @unsaved_values = Set.new
+      @transient_values = Set.new
+      @values[:id] = id if id
     end
 
     # Determines the equality of two Syspro objects. Syspro objects are
@@ -52,7 +60,7 @@ module Syspro
     private
 
     # Produces a deep copy of the given object including support for arrays,
-    # hashes, and SysproObject.
+    # hashes, and SysproObjects.
     def self.deep_copy(obj)
       case obj
       when Array
diff --git a/lib/syspro/syspro_response.rb b/lib/syspro/syspro_response.rb
index a9c92d4..91958da 100644
--- a/lib/syspro/syspro_response.rb
+++ b/lib/syspro/syspro_response.rb
@@ -1,29 +1,11 @@
 require "nokogiri"
 
 module Syspro
-  # SysproResponse encapsulates some vitals of a response that came back from
-  # the Syspro API.
   class SysproResponse
-    # The data contained by the HTTP body of the response deserialized from
-    # JSON.
-    attr_accessor :data
-
-    # The raw HTTP body of the response.
-    attr_accessor :http_body
-
-    # A Hash of the HTTP headers of the response.
-    attr_accessor :http_headers
-
-    # The integer HTTP status code of the response.
-    attr_accessor :http_status
-
-    # The Syspro request ID of the response.
-    attr_accessor :request_id
+    attr_accessor :data, :http_body, :http_headers, :http_status, :request_id
 
     # Initializes a SysproResponse object from a Hash like the kind returned as
     # part of a Faraday exception.
-    #
-    # This may throw JSON::ParserError if the response body is not valid JSON.
     def self.from_faraday_hash(http_resp)
       resp = SysproResponse.new
       resp.http_body = http_resp[:body]
@@ -35,8 +17,6 @@ module Syspro
     end
 
     # Initializes a SysproResponse object from a Faraday HTTP response object.
-    #
-    # This may throw JSON::ParserError if the response body is not valid JSON.
     def self.from_faraday_response(http_resp)
       resp = SysproResponse.new
       resp.http_body = http_resp.body
diff --git a/lib/syspro/util.rb b/lib/syspro/util.rb
index 150baa6..eebf93c 100644
--- a/lib/syspro/util.rb
+++ b/lib/syspro/util.rb
@@ -2,9 +2,21 @@ module Syspro
   class Util
     # Options that a user is allowed to specify.
     OPTS_USER_SPECIFIED = Set[
-      # :syspro_version
+      :user_id
     ].freeze
 
+    # Options that should be copyable from one StripeObject to another
+    # including options that may be internal.
+    OPTS_COPYABLE = (
+      OPTS_USER_SPECIFIED + Set[:api_base]
+    ).freeze
+
+    # Options that should be persisted between API requests. This includes
+    # client, which is an object containing an HTTP client to reuse.
+    OPTS_PERSISTABLE = (
+      OPTS_USER_SPECIFIED + Set[:client]
+    ).freeze
+
 
     def self.objects_to_ids(h)
       case h
@@ -45,8 +57,7 @@ module Syspro
       end
     end
 
-
-        # The secondary opts argument can either be a string or hash
+    # The secondary opts argument can either be a string or hash
     # Turn this value into an api_key and a set of headers
     def self.normalize_opts(opts)
       case opts
diff --git a/syspro-ruby.gemspec b/syspro-ruby.gemspec
new file mode 100644
index 0000000..b63b0d8
--- /dev/null
+++ b/syspro-ruby.gemspec
@@ -0,0 +1,36 @@
+lib = File.expand_path("../lib", __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require "syspro/version"
+
+Gem::Specification.new do |spec|
+  spec.name          = "syspro-ruby"
+  spec.version       = Syspro::VERSION
+  spec.authors       = ["Isaac Lewis"]
+  spec.email         = ["isaac@ike.io"]
+
+  spec.summary       = %q{SYSPRO 7 Api Ruby adapter}
+  spec.license       = "MIT"
+
+  # Prevent pushing this gem to RubyGems.org. To allow pushes either set the 'allowed_push_host'
+  # to allow pushing to a single host or delete this section to allow pushing to any host.
+  if spec.respond_to?(:metadata)
+    spec.metadata["allowed_push_host"] = "http://rubygems.org"
+  else
+    raise "RubyGems 2.0 or newer is required to protect against " \
+      "public gem pushes."
+  end
+
+  spec.files         = `git ls-files -z`.split("\x0").reject do |f|
+    f.match(%r{^(test|spec|features)/})
+  end
+  spec.bindir        = "exe"
+  spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
+  spec.require_paths = ["lib"]
+
+  spec.add_dependency("faraday", "~> 0.10")
+
+  spec.add_development_dependency "bundler", "~> 1.16"
+  spec.add_development_dependency "pry", "~> 0.11"
+  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "minitest", "~> 5.0"
+end
diff --git a/syspro.gemspec b/syspro.gemspec
deleted file mode 100644
index a32fa3f..0000000
--- a/syspro.gemspec
+++ /dev/null
@@ -1,36 +0,0 @@
-lib = File.expand_path("../lib", __FILE__)
-$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
-require "syspro/version"
-
-Gem::Specification.new do |spec|
-  spec.name          = "syspro"
-  spec.version       = Syspro::VERSION
-  spec.authors       = ["Isaac Lewis"]
-  spec.email         = ["ike@wild.land"]
-
-  spec.summary       = %q{SYSPRO 7 Api Ruby adapter}
-  spec.license       = "MIT"
-
-  # Prevent pushing this gem to RubyGems.org. To allow pushes either set the 'allowed_push_host'
-  # to allow pushing to a single host or delete this section to allow pushing to any host.
-  if spec.respond_to?(:metadata)
-    spec.metadata["allowed_push_host"] = "http://rubygems.org"
-  else
-    raise "RubyGems 2.0 or newer is required to protect against " \
-      "public gem pushes."
-  end
-
-  spec.files         = `git ls-files -z`.split("\x0").reject do |f|
-    f.match(%r{^(test|spec|features)/})
-  end
-  spec.bindir        = "exe"
-  spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
-  spec.require_paths = ["lib"]
-
-  spec.add_dependency("faraday", "~> 0.10")
-
-  spec.add_development_dependency "bundler", "~> 1.16"
-  spec.add_development_dependency "pry", "~> 0.11"
-  spec.add_development_dependency "rake", "~> 10.0"
-  spec.add_development_dependency "minitest", "~> 5.0"
-end
diff --git a/test/client_test.rb b/test/client_test.rb
index 654b234..659e15b 100644
--- a/test/client_test.rb
+++ b/test/client_test.rb
@@ -5,4 +5,15 @@ class SysproClientTest < Minitest::Test
     client = ::Syspro::SysproClient.new
     assert_match (/(\d+\.)?(\d+\.)?(\d+\.)?(\d+)/), client.get_syspro_version.version
   end
+
+  def test_client_block_execution
+    client = ::Syspro::SysproClient.new
+
+    version, resp = client.request {
+      Syspro::GetVersion.get_version
+    }
+
+    assert_match version.version, resp.http_body
+    assert_match (/(\d+\.)?(\d+\.)?(\d+\.)?(\d+)/), version.version
+  end
 end
--
libgit2 0.21.4