The following is from a perspective of a newbie who started crypto a mere 4-5 day ago.

Two Complaints
Their customer service is non-existent, with no one ever responding to a ticket. It's very disheartening went you're experiencing issues and see no one responding.

The second issue is that the withdrawal system is exceptionally bad relative to other exchangers taking nearly 3-20 times longer on average. Most of the time is spend waiting for them to manually approve my coin before sending it.  The two famous coins ,LTC+BTC, face the opposite issue with them getting approved quickly but takes forever to confirm. ..probably due to poor hash/b rate.I'm personally in limbo right now due to them taking forever to transfer my BTC thanks to their very low 290s hash/b.

In conclusion, they're not scams but the results of their non-action  make the result more/less the same. I've lost several huge opportunities that could've increased my profit by 2-3 folds if their transfer rate matches the competitors.

Stay away,