I typically get 11-12 hours of web surfing, email, some YouTube, social media, and other light tasks. Right now, I'm at 59% with 5:12 usage time and 25:09 standby. Main power users over the last 24 hours are Chrome, YouTube, and Facebook. I use auto brightness which typically keeps the screen comfortable, but below 50%. I turn off background app refresh and most push notifications and location services.
I only notice warmth sometimes, if I'm using it while charging, but nothing significant.
Thank you for all of this good info. I'll take a look at a few things and see if anything changes. I really love it otherwise.