It's funny that I just stumbled on this thread. I bought those inserts at the local Walmart after going through the process of that "foot machine". I have worn them for maybe a year or two but just a few days ago, I stopped. My feet were tired and sore every night and my legs too. Plus I had just bought new Dr. Scholl's sneakers and when I put the inserts in, my feet were too high and too far forward in the sneakers, toes rubbing and all. Since the new sneakers were padded in both the arch area and the heel area, I decided to go without for a few days and see how I did. Well, my feet feel so much better! Wish I had never gotten them. Best to buy decent shoes/sneakers. As someone else mentioned, you only get one pair of feet in your lifetime so treat them well.