I’ve been using a tshort dactyl manuform 4x6 for 5 years now, having never planned to use it for even 1 year. I only commonly use the two innermost thumb keys; I didn’t think I would like the thumb cluster from watching a video of someone typing on it, and I indeed don’t like the thumb cluster. The switches are Kailh Brown; one of them started to stutter and I replaced it with … a TTC Brown or some such.
I’ve printed, but not finished, a Splaytyl. I think it’s going to feel nice, but it’s only 4x5, and I’m nervous about not having Tab and Enter on the base layer.
I got a Keeb.io kit and soldered it myself, and then I’ve handwired a Dactyl Manuform and (halfway) a Splaytyl. I love how many people can build you a 3d-printed keyboard these days, but I’m already equipped and experienced to do it all myself.