I have worn the MBT shoes for a few years now - but never out in public, other than walking in the neighborhood. Why? Well, just look at them. The Skecher's version are much "cuter". I wore them with shorts over the summer, and received compliments simply on their looks! I find them to be just as effective as the MBT's - perhaps more so, because I am willing to wear them more frequently.
The difference between the two seems to be that on the MBT the "squishy" material is only under the heel, while on the Shape-ups it is under most of the foot. I notice my calves and upper legs getting a workout from the Shape-ups and my posture is greatly improved when I wear them - which means less back pain. Also, I noticed that the pain I usually feel in my heels at the end of the day doesn't exist on the days I wear my Shape-ups! If you're "thinking about it" DO IT!
Bealls Best Value. Skechers ShapeUp Strength athletic sneakers offer a stylish way to "Shape up" while you walk! These sneakers promote weight loss and will tone your muscles as you walk along with better posture. Shoes come with a "How to walk" guide.