For us, the XP was our choice for several reasons. First and foremost are the capacities. A 75 gallon fresh water tank and an available 62 gallon diesel tank mean more time out and longer trips before returning to civilization. We could easily spend several weeks to a month out on trails before needing to find fuel, water, and provisions. It is a high quality product and we've had great customer service. The flatbed and design with large windows on almost every wall and ceiling make the camper feel incredibly spacious. I like the separated design, not because I plan to drive the truck without the camper but because if I am able to purchase a camper that will be with me the rest of my life and be able to replace the truck that carries it as necessary. We plan on going full time in it as soon as we are able for as long as we are able. All of the features above allow us to do this and sooner rather than later.