People already have on this very forum. It's not a secret by now. Don't you have an iPhone.
With 3D Touch, sometimes regular taps don't register. So you end up tapping harder on the screen out of frustration.
Better just to turn 3D Touch off altogether. It's a time waster.
Now, before you flat out deny that it's ever happened to you, as is often the case; I'm just saying, it's already on the forums.
The best word to describe the iPhone right now? Quirky. Verrrrrry quirky.
You never know when something is going to work or not. And as has been documented on my phone calls with Apple Support, I'm tired of refreshing the RAM. Closing apps. Deleting apps. Reinstalling. Redownloading from the cloud.
You know how many times I had to wipe my iPhone to restore it since the iPhone 6?
Probably 20 times or more. But I'm not doing it anymore.
You must have an iPhone from different company. My iPhone 6s Plus is working great. Zero issues. It's been faster than my 6 Plus, battery life is better. My 6 Plus was a year old. After first couple days, my photos all sinked up and appear on my phone iPad and MacBook in seconds. I get phone calls through my iPad non cellular and the MacBook. Everything syncs great. Att wifi phone is wonderful. Screen on phone is great, pictures are wonderful. No blotches, dots, dust, lag, freezes. Non of that stuff. I have updated via iCloud each update no issues.
I read the stuff the few complain of and just wonder. And my son got the same iPhone upgrade and has had the same results. Best iPhone ever. So I don't get it, what are my son and I doing right, or what are you few doing wrong.
I like 3D Touch, took me a week to get used to it. Now when I switch to my iPad Air 2 I get frustrated becaus no 3D Touch. Has not interfered with using other touch screen features in the least, after I learned how much to touch.
Apple Music has been great. Uploaded my entire CD collection into iTunes and have it on the phone along with all Apple Music. Now I spend cost of one CD a month and have millions of albums/songs. Maybe it's me, but there are a few detractors on here that seem to be making a crusade out of their experience with the iPhone and ios9.
Love using Hey Siri. Ask it several questions each day, and use the timer like crazy for cooking, or reminding me about something. Phones sits across room and I yell "Hey Siri set timer for 30 minutes" boom like magic it answers back confirming timer is set. Not having to touch the phone for that, or asking time, or temperature. Silly things I now take for granted. Like having an assistant with me. I love it.
Just want readers to know there are also some of us who don't have these issues, and truelly enjoy the latest iPhone. I read the problems and look for them on my phone and just don't have them. I'm sorry those few do and I wish I could help them or at least explain it. But the two iPhone Son and I have are just plain working great.