Disclaimer: I am not a professional so don't expect nuggets of wisdom dispensed here. This isn't technically a review either but rather simply the shooting experience with the D750 from my POV as an enthusiast and based on my preferences & needs. All camera related products mentioned were purchased by me for personal use. Full-sized pics (along with EXIF) for this write-up can be found in the three Nikon D750 Albums on my flickr page.
PREAMBLE I have enjoyed photography dating back to the film days of my youth and have been engaged in it on/off (but mostly off) for the past few decades. My first DSLR was an EOS D60 after the mass exodus from film and I shelved my EOS3 (which I still have) but re-used the EF 28-135 IS USM. This was during the days when manufacturers were still touting megapixels as the sole important spec for digital cameras which I naively bought into thus was amazed at the quality that was produced with "just" 6MP. (shot w/D60 hand-held at awkward angle with close-up filter so not the sharpest…)
Being a gear head, I've yearned for a FF Canon DSLR for a while (beginning with the original EOS 5D, then the Mk II and most recently the Mk III) but I simply couldn't justify the cost of one especially factoring in nice glass and the fact that I wasn't a pro. So I stuck with bridge cameras (Canon S3 IS & Panny FZ-150) as well as various P&S (Sony DSC-T1/DSC-T9/RX-100 & Panny LX-5).
They served my purposes well for taking family pics, trips, the occasional events & mostly what I've been doing a lot of which was predominantly low-key photography and videography of gadgets I reviewed. I was pretty satisfied with the results and given the D60 was bulky and heavy to carry around and thus not getting much use, I sold it.
In my heart though, the desire for a FF DSLR was never extinguished...