When purchasing clothes or shoes on amazon I really rely on the reviews, even though sometimes they contradict.  I really love a round toe boot but initially I wasn't sold on the back zipper and the heel looked strange in the pics.  After reading a review here saying how sexy the back zipper is I gave it a chance.  The boot is true to size.  I wear a 6 1/2 women's size.  I only wear boots with stockings or trouser socks but if you want to wear a thick sock you may want to go a half size up.  The calf is perfect for me, but my calves are average to bigger.  My legs are shapely.  The boot is loose around the ankle but since they fit well on the calves they don't slouch much.  The heel is actually pretty and the best feature is the hidden platform.  It makes the boot very comfortable to walk in while still keeping the boot looking very feminine.  The back zipper is a treat.  I wear black coats often so it's this pop of metal in the back that stands out.  I've received many compliments on these boots!