I bought the 12 PM on release date.
I was with apple from the first one up to 7. then went over to android and now i'm back.
However.. I love the design, and yes it feels heavy but it "feels" premium.
My reason to returning it was the screen. It's a warmer screen indeed and there is yellow tint if you compare it to older iphones. Maybe not everybody got it but i was in the applestore in my hometown and all of the display had some extent of yellow tint. Even the apple genius i booked time with showed hers and it was the same.
Picked up a used 11 Pro Max 512GB with applecare+ until september next year instead for almost half the price. Applecare+ transferred to my name as well so i'm all good.
Holding out until the 13 depending on if there are any new feature that i would like.
Don't get me wrong, the 12 is absolute beast but if you have a 11 already i wouldn't upgrade.
Yes, the camera is slightly better but for a day to day use I didn't see much of a difference. except night photos.
Batterywise my 11 have 89% battery health left but it's still almost as good as the 12 PM.
The guy that i bought the 11 PM off had the 12 PM and same thing with his screen. Yellow tint but he didn't mind, he was going to sell that one next year and get a new phone.
Well if it works for you then it's fine. But i would like to have my screen showing the correct color if/when i edit photos on the go. So jumping this years iphone
If money isn't an issue and the screen lottery is not an issue i would go for the 12. Because who doesn't like the newest gadget if money isn't an issue?
Oh and the more warm screen of course. There is a thread here on macrumors about it as well.