I just got these last week and I really like them! I already own a pair of black and white Shape Up sneakers that I use on walks and I really liked them. I had noticed an improvement in my posture the first time I even tried them on, and walking in them was very comfortable (just a little heel rubbing at first). Since I'm on my feet all day as a teacher, I wanted some Shape Ups I could wear to work, which is why I got these Physical Mary Janes (in brown). So cute!!! From the top, they look like normal shoes. Very fashionable. They are quite comfortable except they are a little tight where they go over my big toe "knuckle." I presume that is a defect in my foot and not the shoe! (Though that is why I only gave four stars.) They are loosening up a bit though and are fine. I feel so much more support when I wear them. Really fun shoes...expensive, but I tend to think that it is important to have good quality footwear, especially if you are on your feet all day. With regard to whether they are good for exercise, well... I did feel SOME workout with the sneakers and maybe with the Mary Janes, but I wouldn't say it replaces working out. Of course, you are supposed to walk in a very certain way (comes with a DVD to show you). If I walk the way they instruct, I feel more burn. Bottom line is that I got them for posture and comfort and they work well for that.