I stayed in this park for about a week. As with most KOAs, we were ramrodded into small sites close together. There were many trees that provided shade, but also made the driver have to jockey the rig in the site so that all slide-outs could open without hitting a tree. The staff was very friendly. The playground kept our little one busy as did the mini-golf. The daily pancake breakfast was a cheap treat. The pool was kind of dirty and very cold. We ended up there for one day at the start of the Sturgis motorcycle rally, so the price for the site went up to over $50. The location was pretty good for our needs (going to Pine Ridge Reservation), but next time might stay nearer to Rapid City.
If you are looking for the amenities of a big RV park, Shades State Park is not the place for you. But if your rig boondocks, you can't beat it. My 32' motorhome fit snugly in the beautiful shaded site on the asphalt pad. Each site has a fire ring, an asphalt pad and a sturdy picnic table. Vault toilets were available in the Locust Grove campground area where I stayed, and flush toilets and clean showers were located within easy walking distance. Shades is one of Indiana's hidden treasures with hiking trails, waterfalls, rock bridges, etc. It is dark, dark at night with no ambient lighting other than campfires, tiki torches, and flashlights - great for star-gazing. The website is great and includes dimensions for every campsite in the park, so you can actually pick one that fits your rig. This was one of my best camping experience to date because so much time was spent outdoors.