Well, I just finished Fable 2, or rather the main story about 30mins ago. And not to spoil anything, but the ending is crap. In fact, the more I played, the more I was becoming more annoyed with the game itself.
The controls are unresponsive at times, most of the game itself is a huge time sink to mask the terribly short story, and using firearms in aimed mode is very frustrating. The game was great for awhile, but it really looses its appeal around half way through.
I'm glad that I completed the game, but I would have to say that I am disappointed with the game as a whole.