I bought a D7200 as a backup body to a D750 and D800 kit, and to use as a teleconverter (more or less) for those long wildlife shots.
The image quality of this camera is outstanding for an APS-C sensor body. Ergonomics are very similar to the D750.
I wish the Auto-focus had a group setup but for general work it does okay for the most part. Birds in flight are difficult acquire and track, especially against a blue sky. Not in the same league as the D750 and D800/D810 or D500
I'm fairly happy and for the price I don't think you'll find a better camera.