Well.. Being a huge fan of the Guitar Hero series I was expecting a lot more from this game. But, the graphics are pretty much the same, the loading screen sayings haven't changed from guitar hero 3, and the song list is less than impressive. I am a pretty big Aerosmith fan, so it's ok for me, that's my reasoning behind a 4, not something less. But they left some good songs off. Some you expected to see. And I agree with a previous poster, it should have been an add-on. Not another full game.