LOL at all the hope comments, every time someone mentions them you get about a 50:50 "they're great"/"loads of issues" split. I think if you get good ones, they're good, otherwise… So I accept some pairs are good, possibly great. But hope fanboys need to accept they're not all good! Also the comments above about "good customer service", I'd rather not need to find out!
Having said that, I love their hubs. But i'd not touch one of their headsets. "great spare parts availability" hah, try getting some replacement bearings for a previous generation headset. Or try getting them say, a couple of months after they stopped selling them…