We're trialling it right now, launching later in the year.
The service is up to 50Mbit/s down and 20Mbit/s up BUT (and it's a big BUT) you have to be within 1km of the exchange to get it.
1: Is that distance to the exchange going to be a limiting factor for you as a customer?
The second point is the price - this is a premium product targetted at businesses but I think there's room in the high-end consumer market for a VDSL2 product.
2: How much would the market bear in terms of price for speed? Is more speed worth paying more for?
Finally, data caps. Given the speeds (particularly the upload) just how much of a cap is enough for VDSL2 services?
3: How much data do you need with a 50/20 service?
Bonus question: I hear a lot of talk about how the only solution to NZ's broadband problems is fibre. Given these speeds what would you use the service for (and what couldn't you do with this that you would be doing with fibre to the home)?