That thing is to small for me. Claustrophobia!!
We had a 821 Lance truck camper. That had a slide out. It was great for traveling. Heavy though. We used it two years in the fall hunting. It was great the first year. The weather was good. The next year it rained pretty steady. I think we lasted about 10 days.
That was when the search began for a small 5th wheel.
Which we still have.
It's been a great unit for us!