I read the reviews and was not sure these would work for me, but I decided to take a chance. I wear size 7 normally, so I ordered a size 7, and they fit perfectly. I have plantar fasciitis in one foot, and that foot felt better the first day in these shoes. For my non-affected foot, the shoe took 3-4 days of wearing them a couple of hours at a time to feel really comfortable. After about a week I could wear them all day and feel fine. I honestly think that my PF foot is feeling a lot better after 10 days in these shoes. If you have PF, I would say it can't hurt to give these a try.