great car, mediocre services

We got a Chevrolet Suburban. The car itself was ok, but the delivery process (pickup etc.) was not.
The car was barely ready when we picked it up, still hot from the last trip, had scratches on different sides that we had to note and picture ourselves - they were not on any delivery report from Avis. And the car had a permanent warning message ('change engine oil soon'). When I brought this message up at the Avis office (after standing in line again for another half an hour), the guy simply replied that it shouldn't be a problem as long as I would not drive too far/many kilometers. Anyway, he could not do anything about it since he had no oil there. If I minded about the message, I could always buy some oil myself and poor it in. As long as I kept the receipt for the oil, I would get the money back.
On top of it all, we later found out (in daylight - in the dark garage of the airport we had not noticed) that the interior of the car was really dirty. Snack wrappers on the floor and inside the dashboard, stains from drinks in the door etc.