Amazing quality
I have been a Nikon user for more than 50 years, going back to Nikon SP ( which I still have). Each new model has been received with excitement. I still have a D810 which I still use a lot. With the high resolution of the D850, I use it only on a tripod or monopod. There is so much data in each frame that need to keep the camera as still as possible.
My only complaint is why did Nikon swap the ISO and Mode button positions with D810? I use both cameras all the time and I have to stop and think when a change is necessary.
Overall, I am very happy with D850.