A beautiful hilly area, surrounded by large trees, with a small stream. If you want to camp this is a great place. Glamping - no. Most of the sites are grass, with some gravel. Only one full hookup. Getting to the dump station from the camp sites is incredibly difficult. WiFi is pay as you go - and not very good. Cell service is limited (one/two bars) at best. Restrooms (mostly portapotty style) are few and far between. One central shower/restroom was clean and warm (October visit)
The Casey KOA has a full range of offerings typical of camping/RV resorts. Friendly service, Clean restroom/showers and even a pond for fishing.
No frills, parking lot or grassy style campsites. $20 per night for a a pull behind RV on an electric/water site. $30 for a full hookup. Large clean bathrooms, dated but useable.
Full hookup sites on a mostly paved RV park. Big rigs fit easily. Some small areas of grass and trees with a dog walking area around the perimeter. Small play area for kids. Clean restroom/showers, but only a few of them. The park is in an industrial area so you can hear trains occasionally as well as the METRA rail. Security rolled through frequently. Your gate code can be used for the pool and gym at the casino in addition to the bathroom and laundry area. Overall a nice place to stay close to St. Louis, we would stay here again.