My family along with some friends stayed at Crystal Hot Springs campground for a weekend last summer.
The campground is divided into two sections (one with power and one without) and we stayed in the without power section. I would suggest this area for anyone going there, as the section with power was very small and I think frequently packed in the summer.
The pool area was OK. It was 90 degrees on the day we got there and my husband said the hot springs pool was boiling and the regular pool was freezing. They also had a really nice water slide.
All in all it would be an OK place to stop for the night or a two day trip.
The one thing that made this a good trip was the company that came with us and the live band at the park that night. I think the price was quite reasonable as well.