There is normally a little bit of setup to do in getting it to detect objects, methods, and variables. Normally I have to add some stuff into the libraries section. (Sometimes this doesn't work when there is a lot of indirection.)

It does play nicely with Zend and Silex (and other composer-style frameworks). I'm not sure about Symfony or CodeIgnitor.

I must say I really like PyCharm as a Python IDE. Tricked out vim is just too hard to install onto new machines, etc.