Fine for RVs, Horrible for Tents. Great Location for Water Park
The "grand finale" of our 4000-mile road trip was two nights and two days at Silverwood Theme Park in the Northwestern corner of Idaho. The water park and rides were amazing, like a smaller, easier Disneyland. Everyone had lots of fun and we'd definitely go back.
The Silverwood RV Park is attached to the theme park via a pedestrian tunnel and is a whole other story. Hot campground, tiny trees that provide no shade, loud neighbors talking through the night, and worst of all, all tents, chairs, and other items must be placed on the rock pads, not on the grass, since there's sprinklers that go off every night in the grass. I guess this wouldn't have been so bad (maybe a 2 or 3 star location), but we had an especially bad experience when a broken sprinkler blasted our tent and all our gear in the middle of the night (which was in the gravel so should have been safe). We had to move everything to the other side of the pad in the dark and try to dry everything out. A shocking and unpleasant experience all-around.
Pros: Great location if you're going to Silverwood. If you're in a self-contained RV this would work well.
Cons: Horrible for tents unless you're fully outfitted with cots since the gravel makes for an uncomfortable stay and there's no room to spread out. Loud, crowded, and hot.