At first it was very hard working raising the intensity of exercise in kyBoot shoes. I got tired faster, but now I don't notice it any more. It's just harder work when I walk uphill. But I do have the feeling that it does me good. It's like exercise.
It is exciting. The mat makes you feel like you are standing in a forest. You need to keep moving, because you are constantly compensating for the variations within the surface.
I suffered from pains in my legs because of hard work in my café. I got to the point where I felt like my legs are going to break. I bought a pair of kyBoot and after about an hour all my pain disappeared. I feel much more stable, it is very comfortable to work in them, and I recommend them very highly.