When I decided to go the direct from China carbon route my only concern really was finding the best seller.. One with a reputation for a great product, fair pricing, fast shipping, and at least some amount of customer service.
When reading through the giant Chinese carbon 29er thread over at MTBR - It became pretty apparent that Xmiplay, HongFu bikes, and Carbonality had become the favorites thus far.
http://www.xmiplay.com/http://www.hongfu-bikes.com/http://www.carbonality.com/I went with XmiPlay largely due to the fact that one of their employees, Peter, had been the most active in that thread.. They also use the higher quality carbon fiber and had the exact frame that I wanted. While HongFu also had the frame - I emailed both vendors simultaneously and Peter from Xmiplay was quicker to respond and also a bit friendlier and prices were about the same. Xmiplay it was.
The quick response time continued throughout my communications with Peter over the course of the next three weeks. And while I will say that there are few times that I had wished he was just a bit more thorough in answering my questions.. He was always quick to respond and always addressed my concerns and questions. Considering this isn't your local bike shop.. Overall I'd rate communications at about a 9 out of 10. I think it's one of the better customer service experiences to be had with these direct Chinese carbon manufacturers at this point.. but there is still some room for improvement.
As far as product quality and packaging (which seems of utmost importance when shipping carbon products across the world).. Well, I'll update when the frame gets here, which should be within a few short days.
So far.. I can highly recommend Peter and Xmiplay, if you're in the market for a chiner.
EDIT: So it's actually not "Xmiplay" as most of us have been calling it.. it's simply "Iplay". Xiamen is apparently the parent company and with the language barrier there has been a bit of confusion about that. Makes it a bit easier to associate them with their "IP" frames.