I got this phone in early August - had a Nexus 5 before that and previously iPhone 5 and 4S.
The LG G3 is by far the best of the lot, much better battery life than the Nexus 5, great screen and nice thin bezels, which in my opinion, make it look much more elegant and streamlined than any iPhone or Sony phones, both of which have unattractive wide bezels top and bottom. I really can’t imagine how this phone could be better for my use. I mainly read news and sports apps, kindle ebooks, emails and web browsing - no graphics intensive games or videos. I have no regrets with this phone, the first time I can say that, so I highly recommend it.
A full day of use off a full charge and my battery is still over 70%. Light use, I’ve seen it in high 80% area. If I tether and use the camera a lot.I’ve seen it go as low as 58%. The battery life is superb.