Domestic to international connections have completely changed since marrying to international fair class. Premium check in staff can't do a reservations override and put you on an earlier flight, have always gone to the airport earlier and got on an earlier flight for the past 9 years.
Recently had a bad experience with Wellington connecting Flight to Perth due to flight being delayed 1 hour. Premium Check in staff refused to put me on an earlier flight as it wasn't in H or Y class. Expert Flyer showed Y7 so flight wasn't full. I feel there are being changes made at Air NZ for the worse. No updates at gate or on flight until someone asked the crew and they got the captain to find out.
Have also had a Premium Economy flight to the US ticketed via Airnz, with V class as the connecting domestic sector. Where has the good old fashioned customer service gone?