I have used Wayland in the last month, i have it installed on one of my machines and am well-aware of XWayland. But thank you for posting common things about Wayland that almost anyone who visits Phoronix or any other linux-related sites already knows
As for performance boost, i will believe it when i see it. Currently, I use the Nvidia binary driver (with X, obviously not Wayland), Nvidia doesn't support Wayland (yet), and thus i don't see how i am getting a 'performance boost' when Nouveau is slow-junk compared to the blob.