I had work done on an off road vehicle down the street from his place.(BaerTrax, now sold) So I wandered over and just chatted with them. They were friendly and I enjoyed just hanging out.
Can't really speak to his personality, but I'm convinced he's out of his element in front of the camera. He looks uncomfortable most of the time. Which is to say I don't know, and I've always doubted that their model works unless it's funded by a money-to-lose investor.
In talking to some other reno shops around Dallas, many have sort of a 'benefactor' that is usually someone in the auto industry.
https://blackdogtraders.com/ This guy gets his funding from a Nascar guy and I think has some family money in it as well.
The key is being able to sell it for a certain price. With cars it's difficult to forecast. The shows most likely lock in a buyer before the work is performed.
My 'beef' with some of these places is they really don't understand the engineering that goes into autos nor are they qualified to do the things they attempt. So they throw together some ideas that might seem plausible and then a problem arises later and they are long gone. Sort of the used car sales approach to manufacturing.