[obviator]

I have used Symfony for my last few projects. I'm happy with the way the framework is designed, and it's quite longstanding. Another benefit is the templating is done using pure PHP, so you don't have to learn a new templating language for loops, etc. A new version (v2.0) is due to come out later this year.

The introductory documentation and tutorial are excellent. The Jobeet tutorial walks you through how to create an entire application, with the Symfony developers' best practices being implemented right from the start.

Only con: I do have trouble at times finding answers to the obscure questions I have. There seem to be a lot of forum threads about Symfony, but not quite so many answers. If you can find an experienced Symfony developer, I highly recommend talking to them and getting a few pointers in the right direction. That said, I think it's a great framework, a little on the old side in terms of style, but still quite flexible.