none of them are trusted. even bittrex that the first comment suggested is not at all trusted. they recently closed down a lot of accounts for no reason just to block their bitcoins. i would expect some money problems in bittrex, so staying away is advised.
other exchanges like coinbase are better for this case, or bitfinex. possibly even Yobit but only as last option.
I'm not defending Bittrex, but I think they were closing accounts in certain countries only and due to scam issues.
But I agree that Coinbase might be better is someone must keep them on an exchange for fast trading.
well not letting people from certain countries sign up in your exchange or if your rules change let them withdraw and close their accounts afterwards is one thing and most legit exchanges are doing this,
... but closing their accounts and stealing their money by blocking it because they suddenly changed their rules and not giving any answers to the users is quite another story.
