They've been there for years but I haven't used them again. If you're looking for an exchange, try to look for another one. Majority of the people here have stopped using them and even if Justin Sun has acquired the ownership of this exchange, it doesn't mean that it's still good compared before. It's one of the oldest exchanges out there but they're gone out of the ranks. Looking at them quickly, they seem to be very active with airdrop distributions.