On the day after Thanksgiving we purchased Rock Band for the Office 360.  It immediately began the RLOD of death ritual.  Currently it's limping along while we wait for for the MS coffin to arrive to send it back for repairs.

When we complained to MS about it being the second time this particular 360 has had to be sent in.  They offered up 1 month of Xbox LIve.  Which is pretty weak in my opinion.

EA and Harmonix apparently have a different take on taking care of thier merchandise.  If you get a broken guitar ( which is common ).  Then you can give them your credit card information and they will ship you a new guitar with a return box.  If you don't ship back the broken guitar, then they charge your card.  This is a much better method than the 3 week turn around time to get your 360 repaired.