just took this flight in J at the end of january, NRT-ORD. JAL F lounge at NRT was lovely. the dim sum was so yummy and my companion liked the champers.

J cabin was maybe 60% full. crew was decent. i got the japanese meal and was not impressed... would go with one of the other options next time.

i really enjoyed the length of the flight as it allows you to enjoy the meal service AND get a decent amount of sleep. much better use of an SWU than europe, IMO.