Very friendly user interface. New coins added almost every day. The only exchange for high quality NEP-5 tokens (run on NEO). Kucoin the only exchange that distributes GAS to NEO holders daily. KCS shares pay you 50% of it's daily commission revenue. I've already collected several dozen of coins just by holding KCS.
Cons
Some coins such as POE not available to withdrawal (may be a developer issue). Support originally was available in 10 minutes, now may take several days, but it's common for popular exchanges.