It looks great, but to me this is pretty much the opposite of what I want to use - the demo video at least is so busy, and full of transitions and other distractions.

There was a time I'd absolutely have loved something like that (and had all the window effects turned on when the first compositors started arriving) and it looks very cool, but other than translucency I've progressively stripped back everything.

I'll never try to compete with something like that on either effects or features. I might add some very minor eye candy. But that's fine - one of the things I've always loved about the Linux/Unix desktop is how you can get everything from the most minimalist to the effects-laden, and I've used wm's pretty much everywhere on that spectrum myself too over the years.

I sympathise re: drivers - that or the browsers finally abandoning X would be the only things that'd give me enough reason to switch. But I'd be more likely to switch if I get around to scratching the itch of yet another homegrown minimalist step down the stack... (I have a weird urge to write a Frankencompositor that supports Wayland clients and enough to support an out-of-band X11 style window manager and the brutally insecure X11 style event snooping and injection; partly because it'd really irritate some Wayland purists - I'm resisting that urge for now because it'd be a massive time-suck)