Sets are funny things. Personally, I struggle to sleep on any flat bed that isn't good. Broadly speaking, I find it easier to sleep in a recliner than on a poor bed. And I would rank every "faux flat" seat I've ever flown (CO, NW, CX, JL, KL, MH) in J as a lousy bed. I much prefer the seats which are comfortable recliners not trying to be a bed than the seats that wish they wre beds and make lousy seats.
Steve