Very nice modern airport clear sign friendly staff on arrival luggage arrived reasonably quickly. Good connections to the city. Only problem was on departure from Terminal 5 early in the morning the queue to pass through security stretched a long way. There are 2 queues at either end of the building. A member of staff advised me to try the queue that was at furthest away from where I had dropped my bags. Even here it took 20 minutes to be scanned and hand luggage to be x-rayed. Staff called out for passengers for flights that were leaving soon. I suspect in the other queue it would have taken at least 30 mins to get through. Most of the shops sell luxury goods and a few lower end ones would be a good addition.