That's cool. A tad bit infomercialish at the end. Perhaps excitement, perhaps not.
Its definitely new and unique. It'll be interesting to see the level of adoption it gets and the applications it comes out for (duoprop). I didn't watch the end of the video, but the price and reparability come to mind. CAD and CNC machining makes stuff like this realistic from a manufacturing perspective.
Thanks for sharing. If I could get a set for our boat to try and they could be purchased for a reasonable premium over normal SS I would be interested.