I am usually a size 8.5 or 9, either 39 or 40 in euro sizing.  I wear a 39 in Dansko
First I ordered the 40--it was too short and my heel was hanging off of the back.  I exchanged them for a 41--which was huuuuge.  the strap on the back doesn't even meet the back of my foot.  Such a shame b/c they are adorable and the sole was so comfortable.  I hope they can work this sizing issue out.