My husband and I just needed somewhere to stay overnight while driving through Kansas.  This fit the bill because it was along our route.  It is VERY primitive and used for hunting according to the website.  Our issue was that there were a million mosquitos because the water flowing right beside it.  We couldn't even walk from the car to our teardrop camper without getting swarmed.  Otherwise the area would not have been horrible just to stay overnight.  We did not make it to the bathroom across the road, but it looked like a normal vault toilet.