I'm a very happy user of DisplayFusion Pro. It works just great and was well worth the money!
There's just one very little thing that I keep missing and that's the possibility to assign a keyboard shortcut to cycle the wallpaper. That is, pressing, say Win+W, would accomplish the same as right-clicking the DisplayFusion tray icon and then "Wallpaper Timer" - "Goto Next Image".
Maybe something like this could be implemented?
Anyway, thanks for the great software and all the best to you and your family!