Cons:Charged us per mile driven on top of what was paid through Kayak, was never notified there would be an additional charge. Staff at counter was extremely rude when we tried to ask about the $44 cost difference (paid $88 up front, was billed $122). On top of that, the "courtesy" shuttle was awful, waited 30 mins in the parking lot before going to the airport (a 10 min drive at Denver) and we consequently had to sprint through the airport, with an infant, to catch the flight. Barely made the plane, bags of course didn't make it.