When I set up my FBA (long time ago) I did also check the box for international. (Can't remember the exact name of the program - Maybe FBA export)
Most orders were from south america, EU or the middle east.
Got a few sales here and there on expensive legos, but never got one returned or got any complaints. Feedback percentage was way higher than US customers.
Haven't seen any order come through in the last year or so.