When I was younger my family took an older Amerigo 13' on several 3 week camping trips. That was 7 of us, that camper had a flip out on the back but we mostly slept in tents. I think they work great.

I have a wildernest top for my toyota now which is a tent that flips out. It works great if the temperature is reasonable. It only weighs 300 lbs or so and fit just like any camper top.