OP, do you have an Amex Platinum card or a Chase Sapphire Reserve card?
These cards allow yo to request a free Priority Pass card for free access to (non-UA) lounges.
I love taking a shower after/before crossing the Pacific.
BTW, many years ago, my first TPAC trip was also via HKG to KHH! I hope that KHH has improved in the last 26 years.