Tiny campground, poor for tents
This review is for *tent camping* at "Site 1". The "campground" is a tiny little place; basically a gravel/crushed-rock driveway that forked to give two spaces to back in RVs. There is an OK shelter with 2 picnic tables in it and a small fire pit with 3 plastic adirondack chairs between the RV spots. The only space we found flat enough for our small tent was back into the woods behind the shelter (Cameron suggested it, sorta bonus points to him). However it was under a large cedar and we had some cedar gunk on our fly by the 2nd morning. The first night, Site 2 had a couple campers who were starting the Wonderland trail the next day. One slept on the concrete floor of the shelter, the other apparently slept on the neighbor's property, on the flat space beyond the handwritten sign saying "Keep out, no campers, this is not campsite property." The second night also had campers in Site 2. They pitched their tent on the rocks of the RV parking area.
On the plus side, the campsite is super convenient to Rainier, like 5 minutes is you drive real slow.
Overall, I'd suggest planning well ahead so you can get into one of the nicer nearby campgrounds. But, if you can't, this place is an acceptable last-minute booking if you don't plan on much time in camp or if you use an RV.