No personal experience (I moved some seriously lazy cats).
However, the Animal Reception Centre receives in ALL SORTS of animals. They did a special on it once. They showcased a tiger, racehorse, and a Gharial. Was a fascinating show.
They are super friendly. If you call the Animal Reception Centre for the airport that will be receiving in your dogs, they will tell you what to do to ensure it's as stress free for them, you, and of course the pup!