Couple of questions out of curiosity really:
What sort of warranty / protection do you get?
What is the turn around time?
How do you know the design you have come up with is going to work?
OK so there is a saving but how much of a saving compared to going down the On_One, Ragley, Cotic, Singular route? And is the saving worth the hassle and worry.
Going to be very interested in the responses from people who have done this some time ago and are either having a great time aboard a Chinese wonder or have put it down to bitter experience and are hanging their heads in shame (if they are brave enough to admit to it on here).