Although there are obvious benefits to using certain crypto exchanges over others such as high liquidity and the ability to use your fiat currency (not so difficult for those USD holders), but what other factors attract you to a crypto exchange?
Support is very very important they should resolve issues within 72 hours I read some exchange does this for weeks, now that is not good so if you are going to trade and the coin that you are about to trade just pumped you will end up missing the boat, so far I have no problem with Kucoin they are very fast in resolving issues that come along.