The interface of the exchange constantly glitches in many browsers, hanging at the time of order creation. But this is not the main reason, in contrast to Exmo, where they can just hoax you with the transfer of funds, this exchange profit by financial manipulation, forcing you to lose money, by dramatic price changes, with a constant rate in other systems, it can jump up by 20% and down in 5-10 minutes, it is obvious that the administration knows the amount of money in accounts and uses this information to manipulate your accounts at the exchange, and stop-loss mechanisms work crookedly because of problems with web interface exchange (both the old and new). And when you withdraw your funds, you will also pay commission.
For example, you have one BTC, to transfer it to exchanger wallet (not yours!) you will have to pay transfer commission, then to execute sell order you will pay commission, to execute buy order you will again pay commission, in result from one BTC you will receive 0.91 BTC, then to withdraw it you will have to pay transfer commission back and to withdraw it in cash you will have to pay another commission, you will receive maximum 0.83 BTC.
Bottom line - crypto exchangers are total charlatans, they manipulate your funds which are not regulated by law. Use at your own risk.