Having had both and always used units... We got really tired of having to stow everything if we wanted to go exploring. If you are looking used, make sure you check out plumbing as in water heater and lines. Some folks don't think they need to winterize, get an unplanned, cold extended freeze and you need a new water heater. Been there done that. Bottom line is plus/minus to a camper or trailer. Just weigh all the pros/cons before you buy or your life will become unhappy fast.
