I used bitmax for less than a month, while I was looking for where to deposit my dogecoin which I withdrew from coinpot. I ran my trade with the Doge/USDT pair successfully. Bitmax is very interesting as it has an AI system that monitors your trades and recommend coins for you based on your interest previously
They have this platform, the turtle and Burney card, which let you earn when ever you correctly predicted the volatility of given coin. I participated, though I wasn't good enough while playing the
They use a 3 step KYC authentication
The only shortcomings i could say about bitmax is the fact that they don't allow Fiat deposits with credit cards. If not I had a beautiful experience trading with them, they approach theirs differently