Has anyone used the new hobie mirage propulsion system for kayaks?

The MirageDrive is simple and easy to use. Your feet rest naturally on the pedals and you pedal effortlessly similar to a bicycle. The larger muscles in our legs produce more powerful propulsion versus arms using a paddle. In addition, correct paddle usage requires training and practice. You also stay drier as pedaling eliminates drips that you get from using a paddle. The MirageDrive is quiet and creates no splash. The Hobie MirageDrive leaves your hands free for fishing, photography or holding a drink. I loveit!!|||They are great. Why not use the muscles evolved for continuous duty (legs) instead of arms. Foil drive is very efficient. Drawback is they require deeper water to operate in.