Anyone use this hauler ?
 

I've never seen anything like it.

http://www.acchitchhelper.com/

Be Big,
AMAC

From the looks of it there doesn't seem to be any suspension system on those wheels or a pivot point on the hitch connection. I would be concerned that if you hit a bump all the weight and impact would be directly transmitted to the hitch possibly bending it catastrophically.

you can see the torsion bar suspension in this pic:
http://www.acchitchhelper.com/#!Cust..._9350/imageug3


There was a thing like this a couple years back that would help with the weight, and allow a van to pull a goose neck even. May have had brakes to help.
The website disappeared before I ever saw one for sale. Never saw one in real life.

found a couple other names/designs
http://www.trailertoad.com/

the old websites are gone
you can google, there are some pictures and a few threads on forums.
hitch-buddy
tow-buddy