Yes, we've done it and it does take about 4 hours. Be warned though, when you arrive in the baggage reclaim area it will look like a war zone and you will think you'll never find your luggage. The return flight experience is also very 'interesting'. There were chaps walking round with megaphones shouting names of UK airports, trying to collect passengers who were on the end of monster queues to get through security. How they got all the bums on seats that night and everyone on the correct plane is a mystery, but they did!