I camped at site #38. I was a little disappointed that the map on recreation.gov showed its location somewhere else, nevertheless the sites are quite large.
There are two general areas - the bottom loop and the upper loop. The upper loop is next to US12, the lower loop is right on the Tieton river. The river is pretty fast moving so not a place to go swimming. The highway isn't too busy and didn't keep us up at night.
The campground generally was clean and looked well maintained. The facilities were still closed but there were port-a-potties everywhere. No running water just as advertised.
Despite the misinformed location of my campsite I was very pleased with my stay. The camp host was very friendly and was willing and able to answer any questions I had.