Imo, UA will never be up to the same standards QF offers out of DFW & what NZ offers out of IAH. Even with a connection, NZ still offers a far superior soft product compared to UA in all classes of service.
(This also counts for LAX/SFO). Out of UA, AA & DL, IMO, DL offers the better soft product & crew even though AA is utilizing their B787-9s. It's a shame UA won't get those Polaris cabins installed on their B787-8/9s where they truly need them on these important trans-Pacific ULHs. Catering needs to desperately improve as does the consistency of the overall in-flight service put forth.
United's 787-8/9 aircraft will begin receiving mods in 2019 to the new Polaris and Premium Plus product. Their first 787-10 will be delivered this year with both products installed. Their priority, however, is to quickly convert the former UA 777's & 767's with the 3-class configurations to 2-class/ Polaris. Then start working on the legacy CO birds and 787's.
The 787 seats are physically newer, hence the lack of urgency in getting those seats replaced.