No experience but looks interesting. Almost like a roholff in theory but designed around the bb instead of the hub (or in effect doing the same thing nicolai does with a hub but nicolai puts in in the centre of the frame and uses a SS rear wheel)...

I would love more info too, I can think of some applications in downhill if it is strong enough (which I doubt there already isn't enough room for bearings in a standard bb as it is)