I don't pay New Zealand tax as I am not resident there (yet), so can't help you on that one shollis747.
The A330 doesn't operate to NZ, it's a 744 in the summer and a 777 in the winter. The 330 goes to: PRG, MUC, BOM, DPS, HAN, CGK, GUM, ULM, LED, MEL, SYD, BNE plus one or two places in China and Japan. Most flights involve a stop over, sometimes for a few days if the flight only operates 3-4 days per week. I was flying back in the UK prior to this on the 330 and 320.
Payscale - the package is pretty good. Once through all the training and the operating experiance (OE) flights, which I believe to be unique in this business, which are prior to the check ride, the job is very good. It is a properly run airline with its own loaders, refuellers, ground staff and engineers so everything runs like clockwork. We also get dispatched for every flight and there are seldom any defects on the aircraft.
I am quite happy working for them and there many long timers, some over 15 years, so that must say something. Feel free to ask for any more information you may need.