I know people that have used it and it's very hit and miss. Seen some fairly good snides but also seen some absolute horrors. Things like a smaller tick etc.
I think you just have to check the sellers rep. The ones that people are buying from regularly tend to have decent clobber.
I've had a couple of pairs of 90's from there before and I couldn't tell the difference between them and the OG's. Although they can tend to come up a bit small and tight. (Think it's that chinese small dick syndrome again)
