Decentralise exchangers are not good for trading the crypto currencies as they will put nay prices they want and will dump very hard over there. For example fork delta and ether delta are the kind of exchangers. I have seen many projects failing their prices at these exchangers.

Then there comes the exchanger like Binance which attracts me the more and is perfect in all the sense. They have no problems of withdraw and deposit all the time. They are active and having at most security over there. The UI is well furnished and gives me no stress while trading.

Thats the ideal exchanger I guess and that is the way it shovel be always.