I used it (well, Apple events, lower in the AppleScript stack) to generate piles of PDFs for from Quark for clients. Later book automation.
It was super handy for that sort of thing.
Sort of miss it, in a maybe-masochist kind of way.
Open tools to HTML are much nicer. And much less bizarre.
If anyone has some hairy InDesign or Quark or Illustrator thing they need automated, let me know.
...
...personally? lots of useful hotkeys.
But the shit keyboards finally drove me away. Linux on a XPS13 now.
I don't miss AppleScript the language. But I do miss the fact that it was sorta built into everything by default.