they're terrible when you need to float windows (like plots, or gui apps, or gui system utilities). i used to think about how i could merge the two and have floating vs. tiling desktops.

then i realized i could just run a full screen terminal on one desktop and run tmux within it. it can be a little annoying with just one screen but otherwise great.

(incidentally, i also used to be a window maker person, and an actual nextstep person... after those two i ran something extremely lightweight, with small thin window decorations and that's it. i cannot remember the name)