The Nikon D7200 is great for action photography thanks to its 7 frames per second. Add to this its fast autofocus that even works in the dark, and you have a recipe for a camera that's suitable for sports and nature photographers. Not just photographers but videographers can get to work too with the D7200. You can for instance easily make time-lapse recordings with smooth lighting changes to speed up slow movements. Use WiFi to share or save photos right away.
I had the Nikon D80 for the D7200. This model has crashed. What do you expect from a 12 year old camera? :) As expected, this is a huge upgrade. But that is also possible after all this time and for the price. The Nikon D80 had 10MP. This has 24! Like somewhere expected super nice quality. I still had 3 lenses of the D80, they fit perfectly! I have been lucky with the Nikon cashback (200 euros).
I use this body next to my full frame body mainly for nature photography because I have 1.5x more zoom range thanks to the crop factor. The operation largely corresponds to my other Nikon. The advantage with this body is that the spirit level remains visible while changing the settings.
With my previous camera (Nikon D3300) I started to run into camera limitations. I have doubted going to Full frame, but luckily I chose this. I can continue to use my current objectives, only I get much more out of it.