I'm using Wayland right now, but tentatively.
Right now there's an issue in WoW where sometimes when I move my mouse and left-click, the camera jumps to a different position, usually trying to look up.
Only happens on Wayland and it's fixed temporarily by switching between windowed and fullscreen mode. The problem comes back sometimes when alt-tabbing and refocusing the game.
There was a bug in KDE recently where some menus weren't properly appearing on Wayland, but that seems to have been fixed after my latest update.
670 is still better than nothing.
Hopefully it can find its way to someone else's home on the cheap and still give them plenty of years of fun.