I arrived a few days before I started at the company where I wrote my thesis. Since I wanted to stick to the Swedish timeline for the master's thesis, I tried to have the same deadlines in New Zealand. Meaning started in the end of January and submitted first full thesis in the beginning of May.
Upon arrival at Auckland airport I got picked up by the director of BioScience Enterprise, otherwise there are a few different options such as cab, shuttle and airport bus. I would suggest to go with the airport bus, which takes about 1 hour for 16 NZD (currently about 95 SEK). The bus stops at different places in the city and last stop is the central station Britomart, which is just about 10 minutes walking distance from Unilodge. Since I arrived during the summer break it was very calm at the university housing. I scheduled a time for meeting someone in the reception before arrival and he gave me the keys and showed me the room. It is quite a small room/study with a bed, desk and chair, tv, wardrobe(s) and a pentry. You also get your own bathroom. If instead preferring having your own kitchen, you can get this through paying a bit more. As I wrote earlier the total cost per month for a studio was about 7000 SEK, which I think is quite expensive for such a small room. However, it is central, you meet other students easy and you also get a gym card at the university for free (the university is just 5 minutes from UniLodge).
The transport system around Auckland is not that good, so I suggest that you either buy a car if living a bit outside the city or try to get to know people that have a car. For using the public transport the best thing is to by a AT-HOP card and load it with money. Normally I carpooled with someone from the company (since the company was based outside the city). Compared to the public transport, which took about 1.5 hour one way, going by car only took 20 minutes.
The semester after summer break starts in mid February, when most of the students are moving in. In the end of February and beginning of March the university is arranging O'week, which is an introduction week and a good opportunity to meet other students. However, since I was mostly based at the company I did not participate in that many activities during this week.
You should also get you university ID-card, which you for example use for borrowing books in the library, printing documents or getting access to the gym. The gym is quite big and arrange several different classes to participate in, everything from football to spinning.
I also early on opened up a bank account and bought a sim-card (Vodafone is the one I recommened). The bank account can take some time to open, so the best thing is to arrange a time at one of the nearest bank offices as soon as possible.