Launcher is a bit buggy (comes up as a white box and you have to click around the white box for the launcher interface to pop up) but still patches fine.
Ignore the black background in the logging screen if you have it
and ignore it again on the character creation screen, it doesn't affect your gameplay one bit.
There are no major graphical issues, some white squares in the main town of Atlantis that come up time to time (but don't block your view) but that's basically it.
Can go on long hours without a single crash... actually it hasn't crashed on me yet.
Using the exact same bottle as Jade Dynasty. 😏
Tested on OS Lion.