Works very well for me, except I use the button row right under the letters instead of the thumb keys.

The thumb keys force me to "open" my hand and that over time caused wrist pain, I was forced to stop. funny enough going inward doesn't cause any pain to the wrist, even if considered way worse ergonomically speaking.

ErgodoxE EZ – an ergonomic keyboard with open source firmware - https://news.ycombinator.com/item?id=32764109 - Sept 2022 (175 comments)

Show HN: Keymap.click, a site I built to show my ErgoDox keyboard layout - https://news.ycombinator.com/item?id=24922579 - Oct 2020 (3 comments)

Show HN: A high-level Lisp configurator for the Ergodox keyboard - https://news.ycombinator.com/item?id=23244891 - May 2020 (6 comments)

Wow! Browns feel positivity light and quiet to me. (Blues are pure evil to have in an office though.) One of the lovely things about the Ergodox EZ (and the Moonlander the same company, which is what I have) is that you can swap the switches out to your liking. I’m glad the author was able to find something they liked!

I have the four big thumb keys as Backspace - Tab - Enter - Space in that order from left to right specifically because my thumbs sit on Backspace and Space and those are my most used keys on the keyboard.