Works fine on both my test machines. Did take 16 tries for it to install on the laptop. Kept reverting at 3% after the initial reboot with no error message. Finally it just installed yesterday with no explanation for why it worked that time.
No major issues except for the transparent notification bar which is annoying but not really affecting function.
Well I've had a problem with all the recents builds with firefox and about 10 mins ago 15019 crashed whilst using Firefox. Maybe it's a memory allocation problem (have 4 gigs) as clicking on too many things does cause problems.