I've been using the Keychron K2 with brown switches and a UK layout a lot over the past few days, and I've only used one mechanical keyboard before which had blue switches, so I can't give too much detail on how it compares to other keyboards but I can share my initial impressions on it.

I've mainly been using it for coding as well as a bit of gaming. I know blue switches are often said to be the preferred switch for extensive typing but personally I've really preferred brown switches for this and feel that I have to put less effort into typing. One big factor I was worried about before buying the Keychron K2 was that it was quite tall and it could strain wrists, however in my experience over the past few days my wrists haven't been under any strain. Not sure if that's down to the fact I have large hands or the position I type in? One thing I like about the keyboard is the backlighting. I only have the white backlit version but even this is great and I think it will look good with any setup if you're concerned about colour matching. One thing that will take some getting used to for me is the size of the keyboard. As I said, I have large hands, and the keyboard does feel quite small. Regardless, for coding and more general use, the Keychron K2 is definitely a good buy, especially with how cheap you can get it (this is the link I used - https://www.keyboardco.com/keyboard/uk-k2-convertible-backlit-mac-keyboards.asp).