We used this park as a launching point to the U.P. and it was perfect for that.  We stayed in site 41 in the lower campground.  The bathrooms were immaculate, by far the nicest and cleanest SP bathrooms I've ever used (I think they were pretty new).  Camp sites were spaced far enough apart that you had some privacy.  Most sites had trees (kids like to hammock camp).  Easy to back the camper in, electric was on the proper driver's side of the camper.  We only spent one night, we would have enjoyed a second.  Will definitely use again for our next UP trip.