It's a nice-to-have, but it's not a game changer, and there won't be many situations where it provides a big productivity boost over a mouse + keyboard.

I would have been much more impressed with better basic specs, and maybe a new separate keyboard with touchbar/trackpad features.

A keyboard with OLED keycaps would be awesome for creative applications and for developers, because you could see a full set of functions at the same time, and you could set them up to switch automatically as you switched applications.