I have a slide-in camper for my truck that I take when racing and we do camping trips in it as well. Several years ago, we did Yellowstone, the Grand Tetons, and Arches National parks, super vacation. My main advice is plan ahead and reserve campsites especially in Yellowstone. I found that my slide-in camper really worked well because being smaller it gave us access to better campsites, many of the big motorhomes and trailers were just parked in open fields. I got a site in the woods overlooking Yellowstone Lake. I took the camper off and then had the truck free to drive around, parking at the attractions in the park gets pretty wild sometimes, especially for people that had bigger rigs. If you have never been to Yellowstone, I highly recommend you go, really a beautiful place. Plan your days in the park, hit the popular stops like Old Faithful early in the morning, and the park is huge, driving will take up more time than you think, people stop often to take pictures and about 45mph is speed limit. One reason we stayed at Bridge Bay Campground was that it is in the middle of the park, so we planned a four day stay splitting the park into four sections. Want to go back again someday.