Well, the install froze my hidden Dock in the show position, requiring a logout/login to set it right. Saving preferences caused System Preferences to crash, several times. The fish stutter a bit when they turn, despite 32MB video RAM and 1GB system RAM. But it is beautiful. Hope they iron out the bugs and optimize its memory usage a bit more. There's no reason why this shouldn't run smooth on my FP iMac.