Puma is a good helecopter though it does have some major problems when it comes to my side of the house when you put a stretcher on the floor you don't have a great deal of room to work round it and also getting a stretcher in is a pain in the Ar$e hence the reason they use chinook which though giving the room is very noisy and can make working on a casualty problematic. Friends who've used Merlin for casualty transfare have said its the best platform they've used yet.