Imagine all the small, picky problems you had with the first intallment, fix those, then add more badass tracks, and you have Rock Band 2.  After importing my songs from the first game, it now takes nearly 5 minutes each time a I create my own setlist.  The scary part is I haven't unlocked all the songs yet.  Harmonix, sitting on their pile of money that escalates with every microtransaction performed every second on the Xbox marketplace, has done it again.