Battery life has drastically tanked for me. With 3 hrs usage I would have been around 65-70% with mixture of Wifi and 4G. Now I'm 56% with same kind of pattern. That's no small decline seeing as it wasn't all that to start with. This phone won't get me through a day. I can't charge when I need to so I'm afraid Apple have lost a customer. It's no longer fit for purpose.
Give it a few days before you draw any conclusions about battery life. There's a lot of background activity going on after an iOS update.
Also, if you have not done this in a while, try draining the battery all the way down, and then recharge it all the way back up (without using the phone in between). This will recalibrate the battery.
http://www.appledystopia.com/how-to/calibrate-iphone-battery/
Intermittent camera issues. Now you see it; now you don't. Baffling.
Whenever i do scrolling i can barely tell that i'm using an iPhone 6 because the iOS trademarked smoothness has gone downhill. Stutter happens on native apps not only on 3rd party apps.
Upgrading to 8.2 has not solved it. Nor it has a factory restore as a new unit.
Landscape Music App scrolling is so antijobesque...
That's surprising. Mine is as smooth as can be. Anyone else having this issue?
I've had calendar alerts flash up and then disappear without me cancelling or snoozing them. That's a bug...
It almost sounds more like there's something wrong with the actual phone that you have.It's horribly buggy. Sometimes alerts come up upside down, my keyboard crash routinely (reboot required), the music orientation is way off, I dunno... I just got this 6+ last weekend and I am NOT impressed. This was over $900, it needs to work.
Oh, another fun feature, mail is dropping messages from my exchange account. No biggie, just my clients email. Who cares, right? Just wait until the next update, you'll be fine.
And as I typed this, my screen kept flashing. Ios 6 was better than this mess.
I've been getting noticeably better battery life straight out of the blocks. I didn't need three days to draw any conclusions...
When I first got my 6+ it gave exceptional battery life straight out of the box too, again without it needing three days to get up to speed. I don't buy into this 'background activity' stuff. I'm not saying that Spotlight and whatnot don't do some things but they don't tank your battery for three whole days. Like I said, background activity or not, 8.2 started returning better battery life for me from the get-go.
So Apple techs couldn't spot these obvious problems after weeks of testing? Big lols all 'round.

I can't find anything to complain about other than another useless app being installed. Should be able to download it if we need it, but not be stuck with a program for a device that has zero interest to me.
Yes I hate having what is essentially Bloatware (Apple Watch App) when I have zero interest in that product. Google doesn't put bloatware on my Nexus Phones and Tablets. For Apple to bash Google is to once again show their hypocrisy.
8.2 worked fine just long enough to be misleading. It was crash free for four days, now it's similar to the crash prone 8.1.3.
Here I thought iPhone's were reliable and "it just works". Guess again. Apple is failing to live up to their very own standard.
It's very revealing, pay a whopping $1,000 for a phone that's put to shame by an Android at Half the price. Only Apple can pull off such shenanigans 😱