Welcome to the Forum!
My total experience is I just went to their site and watched the video.
It does require two people to connect the FW to the unit.
It should work on flat, hard surfaces. I'll bet it will sink real fast on soft turf or sand!
I am a bit afraid of the 2200# pin wt max. A 15K FW with 15% pin wt would be at capacity. If the same camper was 20% or 25% pin wt, the unit would be GROSSLY overloaded.
The stabilizer bars eliminate my normal concern from unwanted torque from a gooseneck connection.
I assume you would be using this in the shop only on flat, level concrete, which is an easy application - no hills, no rough surface, no thresholds.
I will not speak for or against this unit, but those are my thoughts.