Summary: I would give this camera a perfect 5 stars except it's not holding up well. The shots are fantastic and I have no problem with the quality of the images as they are excellent. I also have a Nikon D4 and the shots are very similar in contrast, latitude, etc...my problem is in surface of the camera.
Excerpt: I bought this to replace my old D50 6.4MP and it is every bit as good as the old camera. Picture quality is great up to 1600 ISO, the old D50 was good to 400 ISO. Looking at the 16 Megapix versus the 6.4 Megapix of the D50 I can see no real difference but the full frame viewfinder is clearer and...
Pros: Easy To Use, Good Image Quality, Large Clear LCD
Excerpt: My Nikon Df is the FX body that I use with 4 Nikkor lenses (14-24mm F2.8, 50mm 1.4 AF-D, 85mm 1.8 AF-D, 135mm F2 DC). It works well with my lens kit. It's a great upgrade from my old and trusted D300. I was waiting on a D700 replacement/upgrade for my D300 DX for some time.
Pros: Easy To Use, Fast / Accurate Auto-Focus, Fast Shutter Speed, Good Image Quality, High ISO Performance, Large Clear LCD, Quiet
Excerpt: Over the past two years I have been using and changing cameras, first the D800e, followed by 6D, A7r, A7ii, 5Dmk3, sold them all, except the pro glasses and bought the D750 two months ago with the Afs 24-70 f2.8g & 85 f1.4g. I wasn't happy with the D750.
Summary: I loved this camera's look and feel as I am a big fan of the Fuji X-T1 and X100s. Having a full frame in this body size and format is quite endearing. But having said that, the body isn't as small as the Fuji's and once a Nikkor 24-70 goes on this body, it no longer feels like a walk-around camera.
Pros: Awesome viewfinder and retro feel in a slightly smaller body
Cons: ISO dials are hard to turn, max sync speed only 1/200.
Summary: I really like this camera, but it is definitely for a bit of a niche audience and there are definitely some things that Nikon really could have done better. First what Nikon did right: The sensor is simply incredible.