After the idiot at Wal-Mart took 10 mins to get the video game case key, I got my game, and it ROCKS!!!!
As a stand-alone game, it is built from the rock band 1 engine, so my Ion kit wasn't in its full glory. I really didn't care about the achievement points, so I ripped 'em to my HD and popped in my RB2.
All of the songs, though a tad repetitive on the drums from song to song, are challenging on Hard-Expert levels on all instruments. The vocals are pretty unique and close to impossible, not many people can pull it off so far at my house.
The song cuts are great, the tracks feel more like a live concert, and again, almost every song is a big rock ending (some going more than a minute long!).
$40 is to some players more well spent on the marketplace on other songs, but to the AC/DC and Hard/Classic Rock lover, you will have TONS of fun with all of the songs on the track-list. If you love AC/DC this is your overdose.
Though I would love to give this a 10, as a Free-Standing game, It's just not worth the money if you have graduated to Rock Band 2, except for ripping the tracks and trading it to gamestop, or getting the 250 achievement. points. It will feel clunky, and those drummers who have cymbals will just have 5 pads again. There is only 1 stage, you think that if this was special, someone would have designed an AC/DC stage you know? Throw in a statue of Angus a-la their tour after "Stiff Upper Lip".
Overpriced for the track-pack that just went to the HD anyway, but its all worth it for all the BIG ROCK ENDINGS!!!!