I have been wearing Saucony women's running shoes for over a year.  I've bought several pairs and they are extremely comfortable in size 9.  I decided to try ordering these online since there was a substantial savings - I ordered the same shoe and the 9 I got was literally 1/2 size smaller than the 9 I was currently wearing - when you compared them to each other it was bizarre.  I didn't bother reordering but Amazon was very prompt in issuing a credit.