I read on here a couple years ago, through a thread of a guy that was testing one. He had no bad reviews, he owned both a Yamaha and the chinese knockoff. One thing to make sure before you buy one is availability of parts. Quality will be lacking so you will need parts along the way.
There is a guy here in town that has one, it looks nice and its been running around for quite a while..
01' Raptor 720, Stage 2, FCR'd
97' 250 Vitos Blaster
06' Rhino 450
94' Banshee T-5's, Vforce, ported, Cool Head, 2-1
06' Wolverine 450 - Stock!
06' LTZ 440
94' Vmax4 750, 96' 600 MountainMax
06' Vmax 1200