Did some, but the syntax wasn't my cup of tea. The _really_ great feature of AHK to me was having the triggers and the actions all in one place though, which is something I couldn't really replicate with AppleScript that only has the actions, with the triggers in Automator.

So with that runtime you could easily just write whatever would happen if you press which key combo (or do cronjob-like things managed by the runtime) and then write what happens inline.

Write it all to a single script, copy it to a coworker's computer, run it, several dozen key combos just work now.

That's something I couldn't manage to pull off in AppleScript or Automator, but then again maybe I was just too dumb.