I haven't ended up buying one yet.. how big is Mishi? It would be a disaster if my sweet terrified Boomer was able to break out of his carrier at the airport or even on the plane! Boomer is about 13 lbs.. Oh by the way, do you know how much the carrier itself weighs? They are telling me that carrier and cat can not weigh more than 15 lbs. (though I doubt that they'll check) Would you recommend that Samsonite one, even though Mishi got out? Is he particularly feisty when contained? Boomer tends to curl up into an itty bitty little ball when he's scared and I have a feeling he'll be curled up like that for most of the flight. If you do get a Sherpa, let me know how you like it I most likely have quite a while before I'll need to have the carrier for Boomer. He'd doing well on his harness so I'll probably just use that for vet trips.