I have a FW with its case, but I bought a Tutto case for it. The Tutto definitely costs more than some of the other bags, but it has a metal surround frame and 4 wheels that go in all directions. It also has straps and pockets to hold stuff. It has taken a lot of abuse.
I have taken it to several workshops and seminars. I know that the one of the owners of my LQS (old address) has traveled with it on a plane.