From the website, they look more like a "prettified" utility trailer than a true camper. They are basically an empty box with nice flooring, a window, and an optional A/C.
In addition, they only mention the empty weight (700lbs or 900lbs) but there's no mention of the total weight capacity. That would make me a bit nervous.
For a basic off-ground enclosed sleeping with ability to fit all your camping gear, this might be a good choice (depending on the weight capacity). As a small self-contained camper, it seems to be lacking even the basic options (ice box/fridge; built in seating/sleeping; stove top).