I have really been enjoying these shoes since they came.  I've only had them about a week but I've worn them for a while each day - they're very cute!  I can't really feel my legs getting "toned," but the shoe is very comfortable and I have not had a problem with my feet or legs becoming tired as I do with some new shoes.  I'm definitely glad I purchased these with the lightning deal though... I'm not sure they'd be worth the full price to me, personally.