I got the game Thursday, and I've been playing it ever since. The game is really good, with the single player(Tour mode). I have a few complaints on some of the tracks, but they do fit the rank they are in. I suck badly on drums, but they are incredibly fun to use. The mic is easy, but I hate to sing though. I'm that shy. For anyone on the fence on which one to buy, I would recommend this over World Tour, only because of the issues with Guitar Hero: World Tour's instruments(note: if you have a 360, you can use RB2's instruments with GH:WT, and vice-versa. The PS3 is suppose to have this feature, but owners of both who try to do this ran into some compatibility issues).

If I had to rate my skills on each instrument, it would be like this:

Out of 5

Mic- 3/5

Guitar- 4/5

Drums- 2.5/5

Favorite songs(so far):

1. Let There Be Rock- AC/DC(even though I don't do well on the opening riff)

2. Down with the Sickness- Disturbed

3. Livin on a Prayer- Bon Jovi

4. Come Out and Play(Keep them Separated)- Offspring

5. Pinball Wizard- The Who

I think I might put COD4 down for awhile now. I will still be playing Earthbound though.