Hi... I flew NRT
last month in J class on a 773. Very comfortable indeed. The seats were CX
's previous generation long-haul biz-cl. seats. The IFE is the fold-out screen, with the full StudioCX system, so more choice than you could ever watch on a regional flight.
The service? It was CX
, so terrific as always, no matter Y, J or F !! What more can you say?
In case of an a/c change on the day you fly, on the way up to NRT
a couple days beforehand, I was on one of their latest-delivery 333's, which had brand-new "regional" J-class seats, which were firmer and more "slim-line" than the older seats on the 773, as well as being electrically operated, rather than mechanical, but still very comfortable.