I would stay away from AY Long Haul.
They still use those last Generation J Class seats
Also those MD11 aircrafts.

The difference is just too great.

You can get really CHEAP Y Class fares on CX between TPE and HKG also HKG-BKK. So no need to pay the 400USD. (Around 1200ish HKD)

It is just NOT worth travelling on AY - Especially on one of your LONG Haul Sectors.