How badly misaligned are your front facing iPhone 6 cameras? I try to take good care of my Apple things so I can resell them at a good price but for a new phone I don't think that's acceptable.
Share your pics of your front facing iPhone 6 camera to compare.
I also have flakey wifi, random reboots, and a blotchy screen and the phone is less than a month old. Kind of wishing I kept my 5s.