Just a note to anyone that is considering this trip and has small children.. don't. The flight itself is pleasant itself, but when you arrive you're deposited at the farthermost gate (practically in another county) and have to trek about a mile balancing bags, screaming baby etc.. Then once you've retrieved your luggage and pushchair from the carousel, you then need to schlep across terminals via monorail to collect your hire car (because the North Terminal rental desks close after 10pm).
Once at the North terminal you walk through building works, poorly sign posted corridors and three floors of ramps to reach the car hire centre.
It actually took us longer to leave the airport than the flight itself