I like it, but I’m not exactly a power user and the only other distros I’ve used are Ubuntu and mint. I think if you want a Debian based distro that’s not tied to Ubuntu then Mx is a good choice. I know there’s LMDE too but as far as I know that’s only available with cinnamon, so Mx having KDE plasma is nice too.
There’s the whole sysvinit Vs systemd but I don’t have a dog in that fight and enabled systemd, which Mx makes very easy even though they advise against it.