Ya, I flew on one of them 2 weeks ago... it was strange. Cos it was packed full in Y downstairs, and on the upper deck, only the first 2 cabins were J pax. I had reserved the last row, in seat 96K but was duly moved forward cos the entire J cabin in the back beyond row 20 were empty ! But I did sneak back for a nap and it was nice ... but strange to see the whole cabin dark and quiet!