What I think you'll find that with electric jacks, taking it off is very easy. Its the getting it back on that can be problematic for some folks. As suggested it is best to to both (on and off) on even and level ground. Go slow and having a "spotter" can help as well.
With my old truck+camper+mirrors I took the camper off quite often, might of wanted to use the truck or was staying for a few nights or just wanted to go cut some firewood and haul it. Easy peasy once you get the hang of it.
In the last handful of years I've just left the camper on the truck. Most (if not all) oil service places have very tall bays that can fit a truck+camper and outside of oil changes, my truck has not needed to be serviced.
- Mark0.
