Camped here In August 2018 for a few days. The bathrooms and showers were clean, although they seemed to close them for cleaning at random times that were never consistent. The vault toilets should have hand sanitizer dispensers. The sites were neat enough with fire rings and some have electricity. The amount of goose poop was unreal though. You have access to Muskallonge Lake in the campground, and there is Lake Superior access not too far down the road, there is a trail from the campground. You can bring your ORV here, but are only allowed to ride in or out of the park, no stopping, not even to drop someone off to buy ice. The sites in Sections 2 and 3 were woodsier than Section 1 where we were, but not all have electric hookups. Booking on the MI DNR website was easy.
We used the campground as our base to go to Munising to do the Pictured Rocks boat tour about 2 hours away, go down through Newberry and across the Seney Stretch unless you like washboard dirt roads, Oswald's Bear Ranch, and Tahquamenon Falls. We took our Kawasaki Ranger out to the Crisp Point Lighthouse. The black flies were bad at the light, a worker said it was because the wind was coming from the south at the time. We had enough Verizon service at the campground for texts, but not enough for much else. The front ranger station provides Wi-Fi. There's a little store for supplies in Deer Park not far down the road. The nearest full grocery is in Newberry about a half hour away. The road between Grand Marais and Muskallonge is not paved, but I believe they are planning on it