I have both a ZSA Moonlander and Voyager. I've used the former for five years or so, and the latter as a travel keyboard for about a year. I'm super happy with them (obviously happy enough to buy a travel version).

I switched to Dvorak at the same time that I switched from row staggered keyboards (so five years ago), and I must say, if you're thinking about switching layouts like that, there is no better time than when switching to a wildly different keyboard. My Dvorak muscle memory is entirely tied to typing on a split, columnar keyboard, and my QWERTY muscle memory is entirely tied to row staggered keyboards. I have never used Dvorak on a row staggered keyboard, and I have never used QWERTY on my Moonlander or Voyager. I think that's helped with maintaining my ability to use standard QWERTY keyboards after not using them regularly for years.