It's an extremely good quality piece of software in my opinion. They have a decent (imperfect, but workable) #noai contribution policy, though it is rooted in pragmatism and merit rather than for reasons I would most prefer - but I am not crusading here, I'll take it.
It's particularly easy to configure, no reloading required, and quite well documented.
I was even able to drop local use of tmux in favour of the awesome tabbed column implementation combined with foot running in client/server mode. Not for everyone I'm sure, but works for me.
Not running under guix so I have no guix home config, but if you're interested in a working config I'll make a paste somewhere. LMK and I'll tidy it up a bit.
Have fun!