we are trying to outsource the server side of our game applicaton to someone. They recommend using Smartfox Server instead of our traditional php/mysql combination.

Our game is in actionscript and will be using social aspects of facebook later on. Smartfoxserver is supposed to reduce the time of development. The thing I'm having a hard time getting right now is how does it reduce the time to development (and by how much)?

We will still be making a RDMS writing stored procedures and game logic based server scripts. Where does smartfox come into play?