I purchased from GAT (John O), but at that point he’d already been absorbed by GAHH. No problems at all: they got it all right including the two rectangular pieces…I only needed the short one, so I asked if they could shorten the other and they did, free of charge.
I had an auto upholsterer do the install. He came to my home and after carefully removing the old carpets, matched up each piece with the new pieces to determine what would need to be trimmed before fitting. It was a highly ordered process.