Yes. I bought GT quarter windows that were apparently rejects from The Fiero Store. One of them still had The Fiero Store lable on the plastic wrap. They were garbage. Also some Generation 1 headlight gears. Again, they were identical to the defective Fiero Store gears.
He is difficult to communicate with. Usually I managed to get hold of his Father when I couldn't reach him. I only got my refund on the windows after nearly two months. He didn't issue it until I filed a dispute with my credit card company.
That has just been my experience. Some others hold him in high regards.