I myself personally likes this kind of exchange, we don't need to make an account to trade in this kind of exchange.
But it has a downside, that our private key is vulnerable for getting stolen if the web is compromised.
You can use metamask wallet if you are worried
i think metamask possibly helping , but i think you must still have some words key or barcode , you're all know something bad gonna happen . the team must prevent bad things
we gave great emphasis on security and even if we are hacked no body can breach funds as funds are stored in user browser as local session not sent to our server at all