I bought an Ergo Dox a couple years ago. It was by far my most expensive investment so far (due to exchange rates and import taxes) but it was a complete game changer for me.
As much as I was sold on it, a part of me still thought I was being duped into buying something that wouldn't really help me in any way but I'm so glad I was wrong. Typing on the Ergo Dox feels like a completely different experience from regular keyboards, because it fundamentally is. It's a keyboard that adapts to my body and arms, as opposed to the other way around which is the (unfortunate) norm.
I purchased Moonlander (also by Ergo Dox), though the software and the build is amazing, but nothing beats my Planck, I just don't like the whole thumb setup it gets my way. I am far more comfortable with a small keyboard such as planck than a wide setup.
My Ergo Dox is 'ok'. I tricked it out with Kailh box navies and it feels nice except the thumb clusters appear to be designed for wilt chamberlain. The moon lander tries to overcome that with the adjustable tilt on the thumb clusters, but I'm custom printing a dactyl instead. Might as well make one fully tailored to my hands...
As much as I was sold on it, a part of me still thought I was being duped into buying something that wouldn't really help me in any way but I'm so glad I was wrong. Typing on the Ergo Dox feels like a completely different experience from regular keyboards, because it fundamentally is. It's a keyboard that adapts to my body and arms, as opposed to the other way around which is the (unfortunate) norm.