I have the Avia version. I wore them on a 3 mile walk about a week after I got them. My hips were very sore the next day.

Now I'm used to them (muscles streched out) and would wear them to Disney. The thick, rounded soles would be very comfortable for waiting in line. Being able to rock back and forth on them while standing would (I think) keep me from getting sore feet.

As others have said, bring regular shoes too. As far as the looks, as more people see the benefit of these shoes, more will wear them and the look will seem "normal".