We had one for a while, probably 8 months. Premium console w/HD-DVD player, and all them goodies. It worked great, then my Dad eBayed it and bought a Toshiba HD-A20 HD-DVD player to replace it, lol. It was in the home theater room/master bedroom area so I barely played anyway, meh but, it worked fine? He played many hours of Gears on it just fine.
EDIT: It's constantly 68-72F up there (20*C - 22*C), that may be why it didn't fail. That and it was plugged into a MonsterCable power filtering thingy.