I have related this story here before.

Auton made a lift for us. We were of course under the gun and didn't have the luxury of time before the install was promised for a party.

They made it wrong... had the inside dimensions built as the outside dimensions. A check of the drawings proved that it was their mistake.

They got three guys on it immediately... made the new mount and sent it on a United flight to Seattle that very day. We had to go get it at the airport but big deal... as a result these guys have earned my business forever. We have now used four of their lifts (so we weren't even a big customer... just A customer) and have had no problems or callbacks.