It's about time. But... I'm rather disappointed at what they did to the guitar mechanics, notes like to "mack" together if your strumming and that (along with a difficult chart) makes for more of an annoying experience. The drums are ok, the left cymbal likes to sleep on the job and takes a little doing to get it up unless your hitting it too hard, then you're just knocking it out. The vocals (unless i'm doing it wrong) are ok too, however I had to put the microphone IN MY BLOODY MOUTH to get a decent scale of my voice. The user content is great and the ability to make your own charts enables you to make a chart so bad, people will gladly purge their ears out <--- (Awesome)
The track list is great in my opinion, About the same as rockband in variety but just with more TOOL.

In the whole RockBand Vs WorldTour thing, I would still be on guitar heros' side, brawling with the unholy legion of RockBand but srsly. If you enjoy making things, doing other peoples things or just like a good "long" (If you're poo at it) challenge, Pick it up, Oh and online play is pretty much what you would expect (especially doing Band Vs Band)

Questions? Comments? Answers?