October 27 here. I have had nothing but problems on my phone since this update. It is unbelievable that this update was released without testing it on 2 year old phones. I have a 6s plus, and sure, there are some app crashes, but what matters the most is that the phone frequently has NO VOLUME, the alarms often have NO VOLUME, although the ringer seems to work most of the time it works. I call people, and I can NOT HEAR THEM. Kind of a glitch with a telephone.
The fact this garbage was released and remains unresolved two weeks later, makes me really distrust Apple in the future. I have been nothing but a fan and advocate of this phone until now, but Apple really needs to close house on this one, and stop acting like nothing is WRONG! Support is telling me it's my battery's fault. Are you serious? The battery seems to be fine. I actually have a strong battery, and haven't noticed any issues with it dying quicker, but it may be. It was always a long-lasting battery, except when doing 4k video of course. Even then it was ok.
But my phone, speakerphone, and alarm functions all having screwed up volume issues is not sustainable. Apple has already done all sort of screwups on their desktop and laptop hardware, but I figure the phones were bulletproof. Not any more. Amazon is selling a $150 tablet and I may get a google phone next. I don't need this grief, let alone that garbage app that is Itunes. Apple is really looking to fail here. I'm not buying an X phone or anything else. I want this phone to work for two more years. I paid almost 1k on this sucker. If i have to leave it, I'm leaving Apple, and I"M DONE!