Stirrup cuts into feet
I really have liked stirrups with my tights as they help hold them into better position. Otherwise, and I don't know if its worse being tall, they will fairly quickly bunch together in the middle of the fabric.
But this version of the stirrup is made of a thin fabric that after wearing for a while actually started to cut into my feet and was becoming painful. Obviously you can just take them off at that point but a real design flaw as it limits how long you can wear them.