They seemed to be clueless about the way my transmission work and the other components that the transmission uses info from to function properly.
I had a performance rebuild kit installed by ATEC for my 700R4 about 5 years ago. Good turn around time. They cleaned up and painted the transmission, looked great! Transmission is still performing great behind my SBC making 500+ HP.
I had a referral to Atec Transmission recently. They had the car for about 2 or 3 days. The transmission was shot. They turned it around in less than a week and had me back on the road. They even helped me with a rental.
I own a local snow plowing Business so our trucks transmissions take a beating have had 2 fixed here and have had no issues. They were in and out quickly and price was responsible!