I could’ve sworn there was already a discussion about this. Maybe I just talked about it with friends or something.
Anyway, this has to be the stupidest imaginable photoshop controller. There’s no way finding and pressing the right key on this monstrosity is as fast as just using the regular keyboard shortcut, or as discoverable as just clicking the control with a mouse.
Someone had a cute idea, but I can’t imagine anyone ever tried using this thing to do real work. If they had, they would have quickly abandoned the idea.
There’s no way this makes anything “30% faster for professionals”. My guess is after a few months of practice with it, a professional could get back to about 50% slower than with a regular keyboard (i.e. half the speed). The professional photographers / photo retouchers / illustrators I know use the crap out of existing keyboard shortcuts, and also have downloaded or created a number of their own scripts, recorded macros ("actions"), plugins, etc., which they assign keyboard shortcuts to. They are highly efficient at switching tools, at creating layers, invoking various adjustments, etc.