Flew CX 883 LAX-HKG in F (on an AA pts redemption) a couple weeks ago and was not impressed.

Cabin booked 4/6. I was in 1A and FA came by offering pajamas. Wasn't sure about sizing so asked for rec from FA. She suggested M which I accepted. FA returns a few minutes later and advises they're now out of M after they were given to another pax!!! I then request the senior purser and explain the situation. Her eyes get massive and she appears shocked before apologizing and asking for a few moments to investigate. Looks like the revenue pax in 2D got the M and a pair of S or L were now my choices. Purser says she'll send a message and a pair of M would be waiting for me at The Pier in HKG. Upon arrival at The Pier they look at me like I'm crazy. No pajamas. Pitiful service failure.

Ended up sending in a complaint via the website and received 20k Asia Miles.