it's only selling point is that "but it's slightly better than the decades old legacy system"
I was sold when I could setup my 1440p@144Hz horizontal monitor and 4k@60Hz vertical monitor in Wayland without any issues. This was after hours trying to get it to work with X11 (and giving up).
The rest of your comment reads like ragebait, tbh. What, exactly, isn't as good? What indicates it's still in beta? What are the flaws? That was the whole point of the post, and "it has problems trust me" is not very helpful.