Couple good additions to the available tracks
For the most part, it looks exactly like the regular Rock Band. Instead of the 60+ tracks though, it is only 20 (for a decent $29.99). Amongst these new tracks, these are actually my favorites:
Boston - More Than a Feeling
Weezer - Buddy Holly
Blink-182 - All the Small Things
30 Seconds to Mars - The Kill
The Police - Synchronocity II
Grateful Dead - Truckin'
Stone Temple Pilots - Interstate Love Song
Oasis - Live Forever
All-American Rejects - Move Along
David Bowie - Moonage Daydream
Lynyrd Skynyrd - Gimme Three Steps
The other songs I could care less about ... especially the KISS song.
I was suprised to see that the difficulty of the songs was not clarified as well though. I had an extremely easy time with the drums on the Oasis song (99% on my 1st try) but struggled greatly toward the end of the Boston Song, unable to get the game to register the drum pedal properly.
This was a good filler in between the 1st and 2nd games. It wasn't meant to be a blockbuster, but it does a good job.