It... works?
I installed a base Debian image into it, set up some basic tools, ssh client and zsh the way I like it so I have a decent shell.
It can access all the filesystems fine, but sadly it's pretty sandboxed - for example, I can't mount my ext4 partitions in there, /dev
is close to empty :(
There are people who set up a full desktop environment using some insane implementation of X for Windows, but it's not hardware accelerated AIUI, so no idea how well KDE would work on it (IIRC you're a KDE user?). Mate or XFCE would probably do OK.
If all you want is the shell so you get all the nice things that brings, it's fine. Anything past that, didn't really mess with it enough to say. At least it's painless to set up (basically, enable it under Windows features, got to Store, pick a distro, hit install, you get a fully functional shell from that) so it's not a pain to at least try it