I saw that and spoke with the owner Very friendly fellow. He even gave me a quick tour of his RV (a Roadtrek 190 forget which year)
Now those dont have much of a bathroom. More of a pregnant conversion van than an RV. Great way to travel, small enough that you dont need to tow a car, you just need to schedule a stop at a motel once in a while to take a shower.
Some of the Roadtreks can be had without an external AC and with a straight bus exterior. Allows those of us who exist in subdivisions with idiot covenants to park their 'van' on their property.