https://samchui.com/2018/10/12/these.../#.W8IKLHtKjIV
AC has one of the lowest seat pitches but the statement re "enhanced food and beverage" is incorrect - it's partially with food and zero with beverage.

Also note Airline review: Air New Zealand 787-9 Dreamliner, premium economy class, Cook Islands to Sydney and the following quotes re NZ PY:
"The cabin has its own lavatory", "We have two flight attendants dedicated to the premium economy cabin for the flight" and "We also get a second meal closer to landing, with choices of a chicken and bacon roll, fish cakes or mushroom pasta". Compare to AC??