Yep. Downsides are cash shopper (if you don't plan buying anything). The item enchanchement system is also very diffucult to learn at first.
I didn't like the hotkey buttons, macro system, weird bugs, too high memory usage and botting was starting to become like a job so Quit it. I got ~4-6 characters on levels 30, 41, and rest ~36 and about 6 mil cash.