My mother bought me my first pair of Crocs, and they have been the only shoe I've worn ever since.  They are that comfortable, and I spend a good part of my day standing on my feet.  I've read in other places that Crocs should not be the only shoe worn all day, but I've been wearing them for over a year now and I've yet to have any major problems with them.

     There are a few minor problems, such as if It's raining your feet can get wet, and they do tend to skid a little on some surfaces.  If you walk slowly and carefully you can avoid slipping, though you can't always avoid gettting...