Seems like they almost always screw up something and act surprised about it. I am sure that the customers pay for the rework.
I wouldn't bring one of my cars in there under any circumstances. He overcharged a guy $1000 for a 1972 Buick N25 through the bumper exhaust.
It is entertaining if you don't know anything but if you do it he is ripping people off on TV. I don't understand why that is something to advertise.