I'll apologize in advance for my newbie-ness... I've had a Dish dvr for a couple years now -- and have been quite happy with it. But I've coveted a 921 since I first heard about it. Now that the money's burning a hole in my pocket -- and I've found this terrific site -- I find myself hesitant. Is the 921 too flawed to bother with? Is it too much trouble? Too ridden with bugs and other mind-numbing quirks? Would it be better to wait a generation or two for DISH to get its act together?