This bag fits the three harmony models in quite a nice snug fashion. The pocket is big enough to fit an A4 boolket and acessories. The stap is adjustable and the handles each side can be connected together.
It does a nice job of carrying the instrument around in a lightweight fashion. It doesn't do the job of a flight case so you still do have to take care of the instrument/bag combo!
For serious frequent moving you really need a flight case.