I'd have to relearn typing, since i have terrible typing habits. Though, the idea is curious for me.
It took me about a month to get up to speed on the Kyria but just a few days on the Alice.
I feel like I could type nonstop for hours without my wrists or back getting sore. Having the ability to configure absolutely everything also really boosts productivity. I do a lot of Python development so I've got shortcut keys to run the linting tools, auto-formatting etc. in Pycharm.
However I had serious buyer's remorse once I started using it; I felt like I had to start typing all over again and it's a bit of an investment to get productive again. I guess like trying a new IDE.
Nevertheless i get a lot of tension in my shoulders when programming for hours on end. The moonlander is seriously tempting.