Get your family and friends together so you can have some serious fun for every one.
Not much is new with the peripherals guitar wise. There is a new set of buttons at the bottom but those are really not too necessary and I never end up using them. But thats okay because the Guitar has enough new stuff to make you see that it isn't a guitar hero rip off or something silly.
The Drums are really cool with their own style and a fulfillment of your primal need to hit the crap out of something. It's fun and hard to get into when you haven't drummed before. That makes it even better because it's a challenge. My only problem is that there is no double bass pedal or the ability to get another one. Which makes metallica songs a real pain.
Along with that you have the Microphone which in of itself doesn't sound fun but it really becomes the life of the party, partly because everyone plays guitar hero, nothing special there, the drums are usually too hard for most, so the mic is a fun and easy way to be part of the action, and the center of attention usually.
The graphics are nothing to write home about but are cartoony and real enough to satisfy along there with guitar hero's, you can customize your "rocker" as you see fit. Make him a punk, goth, emo, metal man, psychedelic rocker, what ever you want.
There a ton of songs to choose from, mainly classic rock, alternative, and punk, so all you metal heads will just have to deal, the song list is nice, maybe not as good as Guitar Hero but along with that you have new songs coming out every week. Another thing thats cool is that you can take your band of friends and start a tour around the world, which leads to my biggest dislike of the game, the stupidity of not being able to make a band online and play with your friends via there, whereas you can only do quickplay.
Overall, ROCK BAND, Rules.