I have been happy with the bistro clog.  I work as a server in a fairly busy restaurant.  I have had a pair of the regular croc clogs for over a year and the bistro fits slightly different.  The bistro is a little taller on the cup of the heel, has less air flow because of there are no holes, and it is less flexible than the normal croc clog.  I didn't like the lack of air flow so I cut a hole on each side of each clog.  This was easy considering there were already indentions.  The bistro overall is a very solid and nice clog.  I have worked in it for 2 weeks now.