The BMW convertible I rented for my vacation in the Keys was a super nice ride. I was very satisfied with my whole experience and then they went over the top:
We left Key West with over a two and a half hour cushion to allow us to return the car, take the shuttle back to the airport, and get checked in for our flight back home. First there was a serious traffic accident on Marathon Key, then numerous long delays on Highway 1, and finally nearing the end of our journey there was another wreck on the interstate with traffic just crawling. Our cushion was completely gone and we arrived at Sixt with barely over an hour before boarding. They people at Sixt, aware of our problem, had us transfer our luggage to a Mercedes SUV and immediately drove us to the terminal. Without their help we would have almost certainly missed our Flight. THANK YOU SIXT and all of your super employees.