After a long day of travel during Presidents' Day weekend (including an 7 hour delay and being diverted to Grand Junction), we finally made it to Aspen airport and Kenny at the SIXT desk was super helpful in getting our rental car squared away. Almost all of their fleet was already taken, but Kenny made sure we received the car we selected as part of our reservation even though we were well past our originally expected check-in date. This was the first time I rented through SIXT, and I will keep in the mind for future rental car needs.