I would not worry too much about the December update. Many people are having signal issues with it. Mine got pushed on MetroPCS and my battery has gotten worse. Signal is not as good either but I never got the ! before like many people are now getting. Buut, my mobile data is super slow which I think is a side effect of something in the new update.This is the first phone where I haven't changed the Animation Scale. Battery life is what it is. I'm not complaining and I assume it'll settle in like most phones. So far, I have zero complaints and glad I went wit the Pro. I would have been always nagging over it if I went the P6.
Fingerprint reader has been fine, unlike the early complaints I read.
The Camera is epic. I mean pics are just amazing looking.
I'm only curious why the December Update won't show up, when it looks like it was finally released last week