This was one of our favorite campsite in ND. Very Badlands feel here. There are some nice long hiking trails, bison and other prairie critters. This is wide open country with no real facilities (no trash either).
Yay: simple camping and lovely scenery, wildlife. If you have horses, bring them!! Ditto to kayaks.
Nay: no water (byo or filter/boil). Nowhere to rent a canoe/kayak in the whole area. Sunny open sites without shade.
Surprise: thunderstorms rolling over the prairie is something you’ll never forget!