Seconding the ergonomics point - between the weight of the thing and the awkwardness of the buttons/trackpads, it’s easily the most uncomfortable system I’ve ever used. I get hand cramps every time I use mine for any significant amount of time - when I’m playing it in bed, I’ve even got to the point of using an external controller with it to reduce the level of discomfort involved.

I hope that the next major version of the hardware will aim for a lighter/sleeker design. The current model feels like gripping a brick for hours at a time.