I have yet to give in to the crocs fad and haven't bought any for me or my family.

After reading the boards, some people swear by them for the best walking shoes. I know that if I don't wear sneakers for a full walking day at Disney, then my knees hurt. Does anyone think that crocs would be ok? Also, do they rub much? They seem to be very roomy, leading to blisters. What does everyone think?