I used the long stay car park on the airport, Premier I think it was called and when we came home, our car had been broken into, sat nav stolen from boot and the car had been left for 3 days with no side window!!!! Oh and the staff had a crap attitude and admitted they never set the alarms on the cars and even if they did, they ignored them when they went off!!!
Personally, I wouldnt park anywhere near the airport because the staff admitted there was a lot of problems with break ins!!! Charming.