Booked the on site long stay car park nice and early in advance of our holiday and used a discount code so we got excellent value. A week before our holiday we were emailed offering us the chance to park in the short stay (right outside the terminal building) for a small additional fee, so we happily paid the additional cost. All went smoothly - collect ticketed from the barrier on entry, and on exit we were straight out once the camera at the barrier recognised the registration plate and was happy with our ticket. No having to find a machine or ticket desk in the airport which we have experienced in some other airports (LBA). Highly recommend using this service.