I've got one. Had it on for about 8000miles now. Nearly a year. Been to Switzerland in it, and on all the pass'. Love it. It's like a dream. Don't have to work about the flywheel failing. Doesn't go hard like the dmf does after some hard driving. Only down side is the vibration through 2000rpm to 2500rpm. Worse on the higher gears, but if you've got a non res milltek it's not that noticeable really. Clutch is heavier. By quite a lot. Shocked me at first and will be the first thing you'll notice but after a week max you won't be able to tell unless you get in another car and back into yours. Your foot just adjusts to the weight. There isn't a much chatter to be honest. I'd be happy for anyone to come listen/feel it, but selling and someone's coming to look at it this Saturday. So might be gone. The vibration is what might put you off, but if your like me, listen to your music/exhaust then it doesn't bother me. Plus if I wanted I could just avoid that part of the rev range.
Haven't heard one of these going wrong as of yet. Whereas there been a few sach/oem dmf going wrong in the early days. That was the decider for me. Can't afford to replace the clutch after 6k.
Greame from GNJmotorsport is the man!! He sorted me out with mine and I've passed everyone who's asked about these onto him. He's doing a group buy a do believe. Get yourself into that. I'm sure he'll accommodate you.