We stayed at the Miracle Hot Springs resort which is the secondary resort on the other side of the road from Banbury due to needing a pull through. The Hot Springs were great with multiple pools and also private pools if you would like. The market just sells a couple candy and ice cream type foods which is good for the kids.
Keep in mind, Dyrt is incorrect for Miracle - NO WIfi or cell service in park, which I didn't mind, just was not prepared for. The showers are at the Pool, not the campground and do not have any curtains, just make sure your stuff is spread out so no one peaks around the wall at you and you should be fine. We had privacy at the park which was nice.
I would not come again to this location, but if you are looking for a simple stay with inexpensive access to Hot Springs then this is perfect place to visit.