i've only had these shoes for 3 days now, but i have to agree with all the positive reviews of how they work! if used properly, you'll feel the difference in your posture and the "pull" on your calves and thighs. the only thing i disagree with is the size. i think it fits true to size, and i'm glad i took the chance and bought my regular size. i'm not big on wearing walking shoes at all (i love my high heeled shoes/boots!), but these are fantastic! would definitely recommend.