One iPhone 6 was updated at home, one at work, both restarted several times.
The Phones is snappy and very fast as long as there is no video in the page i brows in Safari.
If I get a snap with photo it works fine, but if I get a video snap the screen is black but text written on the video is visible. when the video has played (black) for 8 or 9 sec the phone freezes and become none responsive. This is both in Snap, Safari, Facebook, Instagram etc... I have to kill the app to get the phone working again.
I will try to reinstall both phones this evening, I just hoped that it was some fix that did it easier... like on OS X where i can start in single user mode and fix stuff...