VIPONE - I am familiar with it because Lufthansa Group uses the same service for its First Class / VIP and HON Circle passengers ( at no cost)

Following pax get access

Lufthansa First Class
Swiss First Class
Air France First Class "La Premiere"
Saudia First Class
Japan Airlines First Class - though they are moving to Terminal 8

You can buy in to the service- as an Air NZ passenger