I was tempted to get a HAF 932, but couldn't justify the cost and settled for the 922 instead. No regrets though - this case is huge, dwarfing regular mid-tower cases, and very cool. In fact, I now suspect that a 932 would have been too big, and the power cables wouldn't have reached up to the motherboard.
The case has one intake and two exhaust fans, and they're enough really; I bought a couple of 120mm fans for the side panel, but they aren't really necessary. (And the ones I bought were too loud; the fans built into the 922 are so quiet I can hear my component fans and hard drive over them.)
The best thing about the 922 is the amount of room you have to get stuff done. There's no trying to wedge drives around memory sticks and graphics cards - everything just plugs in effortlessly. After a decade of messing about with tiny screws and drive bay adapters, the tool-free drive management here damn near brought a tear to my eye.
I really can't recommend this case highly enough. It's absolutely brilliant.