We stayed two nights in a tent camp site. We happened to arrive just as the camp hosts were making their rounds and talked to them, got recommendations for which site to pick (they were 100% spot on with their recommendation) and local trails.
The sites are all beautiful! Each site has a fire pit, picnic table, bear box, and tent pad. There's no water, so bring your own, but there are vault toilets.
--A NOTE ON FIRST-COME-FIRST-SERVE SITES--
Because of its proximity to Wild Basin and Sandy Beach Lake, this is a popular campground. I recommend arriving for your first night during the week (we arrived on a Thursday and had our pick of sites).
When you arrive, you will flip the sign at your site from "open" to "reserved" to show that it has been taken. Once you've paid your camp fee they will clip a little receipt to the sign. This may make it look to some reviewers like the first-come-first-serve spots were actually reserved but they were not. Those reviewers may have just gotten there late on a popular weekend and all the people who got there first were served first. That's how it works.