I think these products are very much fine to walk on water and keeping a balance but as I saw, this has been failed in this experiment. They MUST improve their shoes because currently they were not able to walk on water at all, but keep failing.
The reason, I'm writing about this is simple, because what they did, is giving a unique thought of something amazing style product. Small, tiny and be able to walk on water with "balancing device".
If you can improve this into further enhancement, I hope something more revolutionary can begin.