I use it to (random incomplete list):

  - switch recipients in Franz.app
  - click on menubar items
  - import current page into devonthink (requires a click on  a toolbar item to start the automation)
  - toggle flux (click on menubar item and go down etc)
  - adding tags in delibar (click on the Nth suggested tag)
  - click on toolbar items  in all possible apps when there is no keyboard shortcut/menu item available