The shoe feels good and size fits good too. But this is my first barefoot type shoe and I must say, I prefer shoes with more padding and cushion along with socks for my running workouts. The inside has a small centimeter layer of padding between you and rubber out sole.

My feet (especially heel) was killing me after running a couple miles on my usual concrete park running path. But I imagine if I wasn't on a concrete path and on grass or terrain the impacts on my feet might have been less severe.

This is just my opinion, I am not an experienced barefoot/natural ergonomic foot running expert. Otherwise, the design style and size fit are great.