I started using WordPress more than 3 years ago and have been using it since version 1.5. Prior to using WordPress, I was using Joomla. Joomla is a great platform no doubt, but it was a bit complicated for my liking.

More at: http://weblogtoolscollection.com/archives/2010/01/15/what-was-your-first-reaction-on-using-wordpress/