I did a factory reset last night, the battery issue was getting out of hand. I'll update my results later.
A word of warning. If you facory reset the beta app disapeears and can no longer be installed. An error appears saying this confilicts with an excisting application! I'm not sure if I'll get further updates (if any happen)
I've had the phone on for 6 hours so far, down to 84%. I've used 33 screen on time but once again the Android OS is creeping up. I'd be interested to hear if anyone is not using good services and what type of battery performance they are getting.
As for the software I can't find any major bugs, its smooth, works great. One little problem I have is with flipboard, but thats nothing major