title: Advantages of the Constraint Model over the Classic Model in NUnit?
body: <p>Besides better readability (maybe?) and being able to chain constraints using <code>&amp;</code> and <code>|</code>, what other advantages does the Constraint Model have over the Classic Model?</p>
  
  <p>I'm a happy user of the Classic Model, and I'm in the process of deciding whether it's worth the effort to refactor old tests.</p>