Well, ok. I got one a few years ago. I had the zeiss 35 f2 lens in F mount for my D850, and for a full frame, 42 mp camera that weighs one pound and fits in a coat pocket....
So, I do use it- just took our Christmas card picture with it. The files are a little noisier than my Z7 but quite good, almost equivalent. For walk around shooting it is great. For wider angle I can do a pano and for more tele I can crop a bit. Is it worth it? Probably not but as I get older the weight aspect is very nice.
Comes with? The pop up viewfinder is small but good. It has the usual level function, and has zoom capability for critical manual focus. Generally functions like my other cameras but is quite small. The batteries don't last long but are tiny, so carrying extras is no big deal. Autofucus is good. I don't shoot sports and such so don't think about rapid acquisition.