Good service once you're in the air, but their website is a total nightmare and their disabled help at their flagship terminal, Heathrow 5, is terrible. The website continually stops you, and in the end you have to phone and do it that way. You book assistance in advance, but once you're there they send you round the houses to find it. Then when you finally get there they say they have no-one to help and we have to make our own way to the flight ! However that means going all the way back to where we were and then another huge trek in the opposite direction to the departure lounge. Appalling !