-
My wife and I both have one.
My wife is a super heavy user, from Solitaire on the train through to constantly checking email and researching stuff when she's at work, Google Fit constantly active, and notifications and auto-updating content for lots of apps, plus a fair amount of Instagram use. With very heavy use she can leave in the morning and arrive late in the evening and just have enough power to plug-in before it fails... say 14 hours of battery under heavy use.
I'm a light user, and use my phone to check email, receive some notifications, check Twitter, read news, listen to music, Google Fit. I generally have 1/4 to 1/2 battery left before I plug in at bedtime. On occasion I've forgotten to plug in and it survives with some spare capacity until I get to work the next day and can plugin. Say 24-28 hours of battery under light use.
Battery hasn't been an issue, though my wife has been thinking of a small power bank as the only time she every actually drains the battery is when she gets a train to Exeter, but this is a lot to do with the signal being really crap on that rail route and the phone constantly searching for a signal.
How much screen time do you get out of it? Just reading a few reviews and it does seem good with the exception of screentime and camera, but like you say it's standard for it to be hit and miss. Might have to deal with it rooted for another month or so, already spent ££££ on getting a new Chromebook.