A friend told me abt these shoes, saying that when she wears them, her joints don't hurt.  I decided to try these since I have a knee that gives me problems.  And they work!!!  When I wear them, I can walk all day w/o any pain in my knee.  Now, I can't use them to workout (they make me overly tired) but I do use them at all other times.  You will need to get use to them and I would suggest ordering .5 sizes up, to ensure that they don't rub.

I haven't noticed any noticeable difference w/ my toning, but, I don't care.  To not have knee pain will shopping, is worth the price.