we used Air new Zealand London-LA route last year at easter
mixed reviews......
We flew premium economy.
The first leg London- La was great , prenium economy rocks ( their old business seats - lots of space and charming service) however it was before they decide to upgrade their planes with the new seats....
the return flight with the new premium seats ( like eggs seats) was just horrible : seats are unconfortable, do not recline a lot, the cushions are hard, we spent 9 paintfull hours.... what a shame the old seats were amazing!
the new skybeds look great however you could not really lie down entirely , unless you mesure 1m48.....
as per the eco class , they are arganised in rows of 3-4-3 , so it's really cramped, but not really worse that British airways or any other company really
Isabelle