I love my Xmonad. I haven't customized it except for one thing for fullscreen windows. I have no widgets or toolbars or desktop icons or anything besides dmenu as a launcher and xterm for everything else. And I love it. However I have some subtle graphics issues like screen tearing when watching certain 4k content, hidpi scaling issues that I could never resolve for all applications and sometimes my GPU doesn't like my TV (which is my main monitor). These are likely the fault of nouveau, but I wonder if Wayland will fix them.

I really wish XMonad would support Wayland. I don't need it to, but gnome on wayland was just really really smooth. Maybe I can set up another window manager with the exact same key bindings on wayland, since like I said I don't customize it at all.