It's worth searching the trip report forum - quite a few excellent accounts of what to expect such as this:
http://www.flyertalk.com/forum/trip-...rates+auckland

You should end up feeling very spoilt although as always the crew are key. I recently went LHR-DXB with Mrs PK and while I had a very good flight her experience on the other side of the cabin was quite ordinary.

As well as champagne there are usually some excellent still wines to try