I'd avoid it at all costs.
Three of their accounts at Bitcointalk have been removed, not exactly sure why as with it it removes all the scam accusations in those threads, its like giving them a free way to get back as they simply register a new account and go from there.
We paid them a 0.15 BTC listing for two trading pairs, after all the scam accusations came in I disputed the payment and requested a removal of our token. To our surprise Paypal didn't decide the case in our favor despite the account being registered to a certain Miaoqi Su from Singapore. No reference to China or the US at all.
After some digging I found more information and confronted them with it, which they neither denied or confirmed, instead they chose to ignore it completely.
It appears they are pretending to be based in China and the US while running the exchange from Singapore. i suppose its illegal without the needed licenses and that being the reason they try to hide their identity. They just made one mistake, accepting the listing fee through Paypal that revealed their true identity.
The father of this Miaoqi girl is an expert in python, machine learning, and anything else you need to know to set up a crypto currency exchange so I suppose his Paypal account has already been banned and uses his daughters name instead. I'm not sure what kind of lies they came up with to win the Paypal dispute, it could very well be that they denied any involvement in the exchange and pretended the money was for something entirely different.