Not the best experience of airport parking I'm afraid. Buying the parking was easy enough and there was ample parking when I arrived early morning. When I tried to leave the barrier indicated that my parking had expired (it hadn't). I had to reverse and go back to the ticket machine which indicated that I owed £58! I pressed the help button on the machine and it took quite a while for someone to answer. Luckily I had my booking reference to hand. The help desk asked me to go to the barrier and press the help button there - this again took a while to answer and at this point the barrier opened. In all it delayed my exit by about half an hour which wasn't great as I was in a hurry. I worked out that the problem was that the auto license plate recognition thing had failed to correctly identify the last letter of my reg number on my way in - worth checking your ticket when you arrive as it is printed on there.