I had a client who wanted a site done. I researched the various CMS's and settled on Drupal. In the end, it did not have the features he wanted (as evidenced by my questions and observations salted through the forum), so, I ... dropped the client.

What can I say, I thought this software and the care and artistry with which it is being written was impressive. I did use what I learned on one of my personal sites. Yeeha!