I will start this blog entry by saying I like Zend Framework. I really do. However, the part of ZF I don't use is the MVC implementation. No, it's not bad. Actually it's a good implementation that is the product of a lot of hard work by Zenders and non-Zenders alike. I use bits and pieces of ZF in my PHP projects and, admittedly, Zend's MVC implementation never made the cut.
He decided a while back on his own implementation and has stuck with it over the years. He still uses the components of the Zend Framework but not the routing and model/view/controller setup of it all. Instead he's opted for his own MVCnPHP methods for his own applications. You can check out these resource for more information: a sample application, the user guide and, of course, the framework's download page.