Considering the 747-8 initially was conceived as a freighter....the A/C system sucks. I've flown LH's plane often in F, which on this plane is Zone A; this is one of the biggest complaints for the pursers....if the temps are fine in the rest of the plane, it's freezing in F. That's where the private cabin is located.

I've not flown China Air, but have talked to two pax who also froze.

Maybe with the advent of this new AF1, there will be a modification across the whole frame.