Adding on here w/a question - am on CX 882 HKG-LAX later this month in J.... thinking of nailing 12A or 12K (solo traveler here)... but notice these are pretty near the toilets.
Too noisy? (I intend to sleep for most of the journey, and don't want to be bothered by the sound of flushing toilets/door openings/door closings thruout the 13h long-haul).

Am currently booked way back in 21K/right over the wing.