I also have the Keychron K1 (full size), but an older revision. My priorities were: Mac layout, reliable, relatively quiet, full size, and not obnoxiously ugly. The K1 checked all of those boxes (once I confirmed I could turn off the multicolor backlight).

They’ve improved one of my main complaints by making the keys not entirely flat. Which potentially could help mitigate my other major complaint: there isn’t enough space between the columns, I often mistakenly hit insert when I mean to hit backspace, and even more often miss when trying to use the arrow keys.

A minor complaint is, like many keyboards offering both Mac/PC layouts, the number pad is still not quite familiar.

All of that said, it’s probably the best keyboard I’ve owned since I gave up on trying to keep an Apple Extended working. I’ve been through too many Matias keyboards and they’re nice but too unreliable. And I won’t even bother trying to remember the half dozen other brands I’ve tried, they’ve all been disappointing particularly on a Mac.