Competition in the world of exchange business is very tight, for the future there will be many new exhcange open and old exchange close their serivice because their income cannot cover operational costs.
I have used it several times and have never encountered problems.
This is good example because when they close their serice, they notify users so users can do withdrawal first.
actually for me its not about competition but RELIABILITY is what important in running exchange and in this part many fails
the bread and butter of each exchange are the traders so if they did not took care of each for sure in sooner time they will be starving
and the temptations of having deals in not reputable company to be listed and create a pump and dump scenarios