We have stayed at this campground many times. We enjoy it. Some of the sites aren't level. But not all of them. Rent a canoe and travel between the lakes. It is quite an adventure. The store is well stocked, and the staff is friendly. We will definitely return.
The KOA campground was very clean and neat. The staff was very friendly. I had made reservations for 2 nights on the Internet, I then decided the day before to add another night. The staff went out of their way to accommodate me. The WiFi worked very well. We had a site near the road, the trains did come by once or twice an hour, but since I live near railroad tracks at home, it didn't bother me. The campground is very close to the Dells downtown. We would stay again.