Stayed here back in May 2020. It's on BLM land so no fee, first-come first-serve. Very small little stretch just off the side of the road with a bathroom, tables, and small firepits. Also some concrete slabs to put your tent on if you want, including some sites with covered slabs to keep the sun / rain off you, or to hang a hammock on. Not every site has those though, and in be careful with the firepits, this area is quite dry and the pits are not well-protected (see my photos). Definitely check local status of having campfires if you're headed here.
Nice because it is easy to get to, will 100% work in a pinch, and is quiet, especially if you have it all to yourself. According to the website it is near a cave system, something I didn't realize at the time (I suppose the name was a pretty big clue, but hey, I'm nothing if not dense in moments...).
All in all, nothing particularly amazing, but functional and comfortable. And hey, if those caves are something special, maybe the proximity of this campground pushes it up into 4 or 5 star territory. Alas, I'll have to find out next time I'm in that part of the country.