We camped here in October 2021 to close out our season and as a waypoint to Beaver Lake. This is a very nice, quaint little municipal campground. The shower house was clean enough, the spots were all well-maintained, and everything worked as advertised. There is a city park right around the bend that has all kinds of stuff, and there are basketball courts, volleyball courts, and horseshoe pits within short walking distance.
It may have been because of the time of year since the campground was about to close, but we were the only campers there for the whole week, which was totally awesome. There are 42 spots at Kamp Siesta, three of which are pull-through, so you cannot possibly beat this place for $10 a night.
Oh, and I forgot to mention the wooded trail right behind the campground. You definitely forget you're in Kansas back there!