The Royal Mail states :
Airmail delivery AIMS for Europe are 3 - 4 working days and 5 - 7 working days for the rest of the world. These aims include items sent by the Airsure service. Delivery targets are not guaranteed and we do not accept any claims for the delay of an item. A delivery aim refers to the point of delivery, not the point of transfer from one country to another.
I posted a very important item with Airsure to the Costa Del Sol, Spain on 1/7/08, it is now the 26th the item has still not arrived.
In my opinion their advertising regarding priority handling once an item leaves the UK is at the very least misleading as they have no control whatsoever once it exits the uk.
I will not use them again