We just returned from a week in the Black Hills, and the camper was great!
We went from Des Moines to Lake Vermillion Recreation Area, then to Blue Bell Campground at Custer State Park for 5 nights, then back to Lake Vermillion on the way home.
Blue Bell was probably the best campground I've ever been to. The sites were spaced well, and we were surrounded by tall pines. The shower house was clean, there was a camp store, and a nice lodge with a great restaraunt. The only thing we missed that some of the other Custer campgrounds had was a playground.
It was chilly, so we used the heat pump at night and it worked well. We decided not to fill the water tank, and just used an aqua-tainer on the picnic table for drinking water and washing dishes.
I ran the fridge on 12V while driving, and it worked perfectly.
The Murano pulled it confidently up and down the hills and it handled great the whole way.
I couldn't get my Garmin backup camera to work properly though... It kept losing the connection, and even worse, would show a delayed video! Hopefully remounting the antenna will help.
I saw a lot more pop-ups out in SD than I do here in Iowa. Here it seems like everyone has giant campers, but out there I saw everything from cool old restored popups to huge new ones.
I'd highly recommend the campground at Custer!