I have to admit, when they first arrived, I wasn't immediately in love but now here I am wondering how I ever did without them!  Love, love, love.  I didn't buy these for the "shape-up" feature, I was actually looking for a comfortable shoe that I could wear following my bunion surgery, these fit the bill.  Right now (5 weeks post op) these are the only shoes that feel absolutely fantastic on my feet.  I love the bit of height they add and the absolute comfort they provide for both the recently removed bunion foot and the other still-have-a-bunion foot.  Super comfortable.  I normally wear a 9.5 and I did size up to the 10 and they fit perfectly.  They look great with everything.  I wear them around the house, out for errands, they are great.  When I wear these with exercise pants, the shape-up heel really enhances the curves in my leg muscles.  I love them!