Too much money for what you get.
The gameplay is the same as GH: World Tour so you can get online with your band. The guest bands are a kind of a an odd bunch but I assume that Activision is going for variety. The bands range from Lynyrd Skynyrd to a System of a Down. Also, might I add they these songs are MUCH easier to play than any of the Metallica selections. I usually play fairly well on hard but I had to gear down to medium just to get by some of the smoking guitar solos in most of the Metallica songs.
The career is refreshing because it does not force you to play every song in a set before moving on the next venue. It's something I would like to see in the future from the next GH; you only really have to play the songs you want to play in order to progress.
All in all, I would not buy this game if I knew what I was getting in to beforehand. It seems like too little for the price you pay and given the band's already diminished (greedy) reputation, I can't help but feel like I fell for the hype.