Horrifying experience. Only third in line at the desk but it took more than an hour to get to the desk despite having a reservation. Then we were told that our car was not ready even though we had a reservation. They could not tell us how long it would take for the car to be ready and they insisted that we actually hadn't been waiting for long. Caused us to miss our hiking activities for the day when it really should have taken only 10 minutes to go through the process.