Company is Purple Parking
The parking is about two miles from the airport and having been to the site (they locked my keys in the BMW- Twice!!!) they seem to give enough space not to ding the cars.
Very professional looking organisation all uniformed, polite etc and when they have damage cars in an obviously noticable way (my company use them a lot) a letter admitting liability is in the car.
Also they have written off a boxster belonging to one of the guys and paid for a replacement without too much fuss.
Best thing is convienience, drop the car off when and go into terminal, phone when the plane lands and its there waiting when you get outside (most of the time).
Worst thing is that they have a habit of getting sub 5 foot women to drive my cars, so getting the seat right afterwards can be fun
Oh for electric memory seats