This is a beautiful, secluded site. The entrance road and main barn/shop are directly visible from the site, but are far enough away that you still have ample privacy, with no other camp sites nearby. There's plenty of river shoreline to explore, and fields for kids to run free in. A clean porta-john is on site, as others described, and only used by this site. The nearby creek and swimming hole, as well as the river, would be great to enjoy in warmer weather (it was too cold to swim during our stay). There's plenty of field space for multiple large tents, and several spots for small-medium tents among the trees if you need the shade.
Steve was a great host, answering all of our questions promptly, both before and during our stay. We would definitely stay here again, and are looking forward to trying the fresh beef we bought from Steve's shop.
My only recommendation is to bring a splitting axe! Plenty of firewood was stacked on-site, but it was all large rounds (~10" diameter or larger), so we had to split the wood ourselves for burning.