The only good things: excellent bonus and good lines.
At first they have high limits but if you have a good day, they cut you severely, even if the lines you bet weren't that good. Terrible bookmaking approach. You'd think they'd be dying for volume these days.
If you're sharp, you'll probably have your limits cut from 1k to next to nothing after a day or two. Then you may have a massive rollover which will take you forever to meet. Be careful. If I were to do it again I would never max bet them.
The other thing I would be very cautious about is that they have absolutely no security. There was zero verification for the withdrawal. Anyone with your password could request a payout to their BTC address and that'd be the end of it. Use a secure, unique password and if you have no rollover, don't let your funds sit there. Get it out asap.