We stayed in a tent on the one tent-only electric site. A lot of the sites have electricity and power. People adhered to the quiet hours. The bath house is about a 5 minute walk from most of the sites, and they are clean and well-maintained (they were better than I expected).
As for things to do, the campground is a short drive from downtown Ellijay. Within the campground, there's a boat ramp to Carters Lake, and the lake is beautiful. Most of the sites overlook the lake, although the views are partly blocked by trees.
The sites are private and not on top of each other, which is nice. The website will say that the tent needs to be of a certain dimension to be on the wooden platform, but you can also set up the tent on the gravel area in front of the wooden platform.
We paid $24/night, with water and electricity.