When travelling and staying away for a few days the long term red car park is great value and makes getting to the airport convenient. They have shuttle buses that collect from the carparks and drop you off at the airport and these are regular enough. Also if your car does not start when you get back I believe they will send out breakdown service to sort your car out.
The negative for me was that when I returned from my holiday I had to wait a long time for the red shuttle bus and when it did finally come along it was packed to the rafters which made it very very uncomfortable. Where was the shuttle bus that is meant to come along every 5 to 10 minutes? I felt I was back on the London underground with the invasion of space on all sides. I just hoped that everyone had taken a shower! Very tiring after a long evening of travel. read more