We bought this to do an extended tour of Alaska/ Canada and ended up building a home instead. I picked it up and it has only moved once for a couple days. I replaced stick batteries with top of the line,new lead batteries that can be discharged to 10%without damage.has larger a/c and heater as well as glass dual glaze windows,not plastic. Back up camera,tall happy jacks full electric with added custom wide flange for flatbed if needed.has top of the line shotgun hold downs, custom queen bed,custom cabinet and shower floor assembly. This is literally better than new.