I've been using this for maybe a couple of years, and I love it! I like that windows stay at the sizes I set them to, and at the same time I can put as many windows in a workspace as I want.
PaperWM is not bug-free, but an active dev community has grown around it, and they do a lot of work to keep it running as smoothly as possible. That includes the essential task of working around breaking extension API changes when new Gnome releases are coming.
I've also been keeping an eye on Niri which applies the same idea to a standalone window manager. I haven't switched because Niri doesn't currently implement XWayland. But it looks like Wine is getting closer to native Wayland support so XWayland might not be a requirement for me for much longer.