Fike over on the webdevRefinery.com forums has some great things to say about concrete5 for anyone looking for a CMS.
He writes, "Ireallyrecommend this for people who need a robust (hence "concrete"), stable and super-easy to use CMS...did I mention its free and open source?"
Fike found plenty of content management systems that were too simple or too complicated, but he found concrete5 to be just right for his needs. "When I tested concrete5 out, it was just what I was looking for. Simple for end-users/clients to manage themselves, yet powerful enough for developers to make addons and "blocks" that are easy to use for the end user," he writes.
Check out his full post, or add your thoughts in the comments, athttp://webdevrefinery.com/forums/topic/11396-concrete5-zend-based-cms-for-developers-and-designers-alike/
Also, he called our user interface "sexy." Just saying...