Had to upgrade, quadrupled my rate.
Pros: They had a car available that fit 4 of us and our luggage- an automatic Volvo station wagon. Friendly service, short wait in line (5 mins).
Cons: Long wait for shuttle (15 mins). When we arrived and realized we had too small a car, the next size upgrade was over 4 times the Kayak rate! There was gum stuck to the door handle, gross!