Wanted to love these shoes so badly!  They looked great and felt like they would allow me several hours of walking in comfort -- EXCEPT for the heel.  I don't normally have any problems fitting my heel, but these shoes were far too big in that one area.  Loose enough to rub a lot.  Would have created blisters, even when I tried with thicker sock.  Back they went.  Bought Clark's Sillian Tino Flats instead and they fit great.