3 displays. 9 workspaces, named. Pretty basic tiled layouts. Named "scratchpads" (basicially popups with fixed client/programms; like a fullscreen popup with my terminal emulator with a tmux session a semi transparent pavucontrol and clipboard manager/copyq).
Important: one hotkey to send the actual client to fullscreen (I have no idea why this feature seems to be a hard one when testing other tiling WMs).
Hotkeys for switching displays.
This seems (for me?) pretty basic needs but I found thats not easily reproducible with other tiling wms.
Some time ago I introduced my GF to a thinkpad with my xmonad config and she was within a hour absolutely able to use a multi monitor setup comfortable with her keyboard. She really liked it.
My config for reference: https://gist.github.com/entropie/c8072585593b784bff9b8af95c1...