Thanks for sharing the review. One small note - the JL HND First Class Lounge is actually open all day, although some rooms inside that lounge, namely the "Salon", have more limited hours. Both the lounges in your photo are Business lounges (JL consistely brands its business lounges "Sakura".) As AA does not offer F though, the F lounge is accessible only to those with OWE or who have F in some other part of their itinerary. Anyone with J (or arguably, even F) lounge access flying on AA's HND-JFK though would be best served using CX's lounge, which IMO offers the best overall experience unless you need a shower or want specific whiskeys from the JL F Salon room.