We love the hub! Its easy for all of us to schedule commitments from iCal and then share with each other. The only small glitch is that when you have a recurring commitment and you want to delete it, you need to do it both on iCal and on the shared hub - this is not needed for non-recurring appointments, for those, once you modify it on iCal, it automatically updates the hub calendar which you linked it to.
stillgroovin about Hub Family Organizer