These shoes are terrific!  Takes a little getting used to, but "wow!"  You are only supposed to wear them 25 to 45 minutes per day the first 2 weeks, but, they are so comfy and cushy--it's hard to take them off!  The size seemed to me to be dead on.  I saw some reviews stating that they were sized smaller--but I did not find this to be the case.  I started a new diet and decided to increase my endurance and leg strength by walking.  I am not so big on walking long distances (arthritis), but these shoes make me feel like I am walking on a cloud!  Almost effortless!  I am looking for excuses to wear these shoes and leave all ordinary shoes in the closet!  They are expensive, it's true, but, in my opinion, well worth the price.  In fact, I will be buying a few more.  These shoes would have to be great for people who have to stand and walk alot in connection with their jobs--could make concrete floors almost bearable.  I am also noticing that the whole back of my body from the waist down is getting tighter . . . so, hooray!