The web site is very clear and it is very quick to make our booking. We have to use the disabled parking area and on arrival there is always plenty of space and the bus stop is right next to the parking with plenty of seating in a shelter out of the wind. You have to press a buttom and speak to the control people to ask for the bus to pick you up as the normal route now bypasses this row of cars to make a quicker exit presumably when there is no one waiting at the disabled stop. We have travelled with a mobility scooter and the driver was very helpful- immediately lowering the ramp so my husband could drive straight on, and ensuring we had time to get settled in place before he set off, he also helped me get on with the two suitcases . The bus stop at the air port is a little way away from the entrance down a bit of a sloping pavement, but there is a call button for assistance for a wheelchair to be brought from the terminal. All in all we find using the car park at Luton very stress free and easy .