I recently was gifted -- very, very generously! -- a Moonlander Mark I split, ortholinear keyboard [0] (made by the same company that previously made the Ergodox). It's genuinely fantastic, and I can't ever see myself going back to either a non-split or a non-ortholinear board as my desktop's input. It's a huge improvement ergonomically -- (0) no hunched shoulders, with the halves at shoulder width (1) the ortholinear layout results in much more natural-feeling finger motions and (2) the ability to "tent" the individual halves is also wonderful, for not having to twist your wrist out of its natural somewhat-diagonal position. Beyond that, the ability to easily modify up to 32 layers of functionality [1], with macros, really is astonishingly useful once set up to your personal workflow. If I were to lose it, I'd order a replacement immediately. Highly recommend, for anyone who can justify the board's price -- I'm normally fairly frugal, so the fact that I consider a $400 keyboard anything except an egregious waste of money really speaks to how much I like this device.
[0]: https://www.zsa.io/moonlander/ [1]: https://www.zsa.io/oryx/