Rock'n and Roll'n. This is a great example of what next-gen gaming should be.
The whammy bar! Do you know how many years I have looked at a guitar or heard the sweet wabble of the whammy bar and wanted to be able to do that. Or be able to jam on the drums at lightning fast speeds and have it actually sound good! Its all good. Every morsel of the game is great!
Cons(term used loosely): One con is the lack of ability to easily change instruments and keep your profile (Xbox360) with the next instrument in local or online multiplayer. I know I am digging. It is just one of the hang ups that I have come across.
The other small....small chink in the otherwise impenetrable armor is the vocals. Very easy to cheat. A.K.A: humming along and not actually singing the words. This is a small minor thing that really should be on the player not the game. Just dont do it and the problem goes away. If multiplayer battles online becomes available. It would be a bone of contention that someone won the match by humming and hitting the right starting and stooping points in replacement of the words.