Sidekick Exoskeleton

I have had PN since 1991 and condition getting worse. Getting much harder to walk. I ran across an internet ad for Sidekick which is a proprietary shoe with a carbon fiber plate on the back that attaches to a battery-powered exoskeleton that straps to your calf. The device is advertised as giving a small boost with each step. Manufactured by Dephy and ads make very clear that it is NOT a medical device. Nevertheless, does anyone have any experience pro or con with this device? Thanks in advance.