Since a few releases the Akka documentation has this to say about persistent FSMs:
Unfortunate since we use Persistent FSM quite a lot, but such is life, technologies come and go, and I generally appreciate adding more type safety to things, in particular Akka which has so far been an untyped mess.
Clicking on the link reveals that Typed Persistence doesn’t quite make the cut:
That’s a bad joke, isn’t it?
Though I fully appreciate the irony of the entirely contradicting advises on both pages. New applications aren’t production-ready anyway, eh?