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?
The first and main feature i consider before making use of an exchange is security. An exchange with huge volume, but with a porous security system, is of no good and is no exchange as far as i am concerned. Even if i make huge sale on such exchange, someone else can easily take over my asset.
Then the next should be high liquidity. I like it when a coin has high volume, which would give good liquidity to the coin that is being traded.
Every other things such as time of transaction and so on can be easily dealt with.