Personally? I have no first hand experience with them.
From various threads on various forums, they seem to run the gamut from total crap to pretty decent fit and finish.
Most guys are looking for bottom end price. But if you looking for around $700-800 a set, you might try nicecycle.com
They claim their bodywork is made and painted in Japan from high-end ABS.
And they also claim it fits as good as OEM.
That's about all I know.