I bought the ShapeUps sandals this past summer because they were on sale, and actually fit. I loved them. So last week I splurged and got the walking shoes. I wear them all day (I work part-time and am on my feet all day), and they are the most comfy shoes I've ever had. You actually feel like you're being propelled forward as you walk, so it helps keep you're energy level up. I can't tell yet if my tush is firmer, or anything, but I figure that if they're comfortable and I want to walk more when I wear them, it can't be a bad thing!

I just got mine and wore them to Cedar Point (amusement park). They were incredibly comfortable, even after walking the park ALL DAY. My back did not hurt, and definitely knew the muscles had been worked the next few days!