One of the best games in the history of the universe.
Gameplay: Rock out to 54 of some of the greastest rock songs of all time. Oh, let's not forget the downloadable songs coming out every week. You can play with up to 4 friends at once, which is great. The character creator is pretty good, but isn't detailed enough. The 100+ purchasable clothes are great a great addition, but I wish you could mix and match stuff better. I also wish the game was a bit harder.
Graphics: OK, the graphics aren't very next gen-y. There very good, but aren't great for a next-gen console. The lighting effects, however, are great.
Hardware: I like the hardware a lot better than Guitar Hero. The guitar is larger, which feels better the the Guitar Hero guitars, especially the X-plorer guitar controller. The drums are prettty good, but the drumheads are too loud, and the kick pedal is a little flimsy. The mic is excellent.
Closing Word: I believe Guitar Hero was just the beginning. Rock Band excells to a whole new level. If you liked Guitar Hero, get this game. It's worth the steep tag.
10/10.