Alberto was professional, competent and friendly. Easiest car rental pick-up in Cancun to date. A few years ago, I spent over an hr at Hertz trying to fend off repeated attempts to get me to upgrade the initial online reservation. It was annoying and unprofessional. This time, however, it was easy, quick and straightforward at Sixt, even with a car seat request and having to travel to an office outside the airport.