I've had a Moonlander for a couple years, and an ErgoDox Ez for 3-4 years before that, and, honestly, I'm looking to move to something else.
My biggest issue seems to be that I'm switching between a Macbook and the Moonlander all the time, and the Moonlander I just find myself making too many dumb typos on. In particular, I think the ortholinear layout isn't doing me any favors, and the missing extra keys on the right (particularly the missing "+" key) I really struggle with.
I do love the thumb clusters, but as the article above says, the red button I never use.
The real star of the show is the programmable firmware. I have a lot of custom mappings on my main layer that I really love, with dual use keys being a big one (z and / are control if held for example). The Framework 16 keyboard with QMK firmware sounds really, really good to me.
Unfortunately, my next keyboard doesn't seem to exist: Low profile mechanical switches, QMK or similar firmware, split, thumb clusters, staggered layout, enough keys to have []\ on the right. The low profile seems to be the killer there.