JR's used to be in Australia in the mid-90s, and the food wasn't all too bad. I remember also being very impressed at the international-recognition.
I had joined up for their "free membership" in Australia that gave me discount of sorts (10% off all food and drinks, or something equally as exciting) and some months later visited Johnny Rockets at Fishermans Wharf in San Fransisco (which if I'm not mistaken was part of the then Travelodge hotel) where my card was cheerfully accepted.