So I have been running for a week or so on Mavericks 10.9.1 but have run into a nasty little bug that I haven't been able to track down to anything except for my World of Warcraft playing.
It seems that spontaneously, the OS will halt and reboot due to a Kernel Panic but it won't give me any other details. It ALWAYS occurs during my game playing and nothing else - ripping my cd's, streaming music, etc. etc. etc - 10.9.1 does indeed fix a lot of usability issues in 10.9... but it can't at the expense of my WoW addiction.
The only thing I can think of is that my system doesn't want me to play WoW anymore! LOL.
I am now re-installing 10.9.0 to verify this issue is truly part of the 10.9.1 beta that I was seeded.
I hope it is, otherwise, I may have to move my dual xeon system in from the garage to keep my WoW habit satisfied.