A friend took the JAL BOS-NRT nonstop recently. Plane was lovely, clean, and 3+ hours late -- completely destroying the time savings of the nonstop. What a shame to pay quite a bit extra for the nonstop, then not get the expected time savings. JAL staff at BOS was unhelpful, lounge was unavailable, really second-rate.
Also, no IFE was available and JAL's compensation offer to my friend was even less than what villox received (7500 JL JMB miles).
Seems to me JAL needs to improve reliability, of dispatch and IFE, in order to satisfy baseline passenger expectations. Would be interesting to look at on-time arrival stats for JAL 787's -- my sense is they may be worse than normal, surely problems that can be fixed, but very annoying in the short run.