My Guitar Hero Van Halen came today. Its...not so good. Of note is that there is a code on the cardboard sleeve that I guess will be for ripping some songs once the retail version is out.
Also, don't let the trailer fool you, you see the 80s version of the band for all of 5 songs. Even then, 2 of those are Eddie's solos. They did a nice job capturing David Lee Roth and Eddie's movements (Eddie even breaks out the cordless drill at one point),but you really only see the 50 year old versions doing them. You will also have the Frankenstein guitar design thrown at you every 3 seconds for the entire game.
Song choices are fine, odds are if you wanted a Van Halen song in Guitar Hero it's here. Eddie's solos are appropriately brutal to play even on medium. I would suggest the World Tour/GH 5 style guitar with the touchpad for the entire game.
There are some nice choices for the guest artist songs(Painkiller, Master Exploder, I Want It All), as well as some questionable ones that would've been better saved for Band Hero. (Stacey's Mom, Semi-Charmed Life)
I'm guessing this will crash in price even faster than Aerosmith. 15-20 dollars seems like a reasonable price, the promo copies are going for 25-35 on Ebay at the moment.