10147 working solid here too. After a couple windows updates and reboots and changing settings to my liking, we are fully functional.
Cant wait for RC or RTM version so i can fresh install all my machines and call it a day!
Did you do anything to get your power and volume buttons working? I took the update route instead of clean isntall, and they just wouldn't work. Fiddling with power settings did nothing. I also experienced very high cpu usage in task manager, however that could simply be attributed to it being a new install so doing work in the background (I only had it installed for an hour before i reverted)