The first time I wore these crocs, they tore at my heels in a very short time.  I also think they appear a little harsh in the grey as the plastic is a little glaring.  Aside from look and the heal, they are comfortable on the bottoms of my feet, a true fit.  I do get use out of them, wearing them outside around the house for short periods of time, with socks to protect my heels.  I like that they are easily cleaned with just a rinse under the faucet.  I will never wear them out in public.