It's not perfect - in particular, the double-height shift keys take too much good pinky real estate. But it's very comfortable.
I haven't tried any other ergonomic keyboards, so I can't compare.
The cut, app, play, calc, www buttons are largely getting in the way (particularly www.)
PageUp and PageDown are nearly useless, since you have to strain your wrist to get to them being down there.
And the Fn key is frighteningly useless, hidden as far left down as possible. How could anyone use the blue arrow keys with it?
Also, has anyone noticed the TypeMatrix 2020 was softer than the TypeMatrix 2030?