New Zealand is pricey with some things - housing being a great example - ridiculously over-priced. The weather is a bit average in much of the country but there are some pockets with generally pleasant weather such as Central Otago, Marlborough, Hawkes Bay. The current government has a lot to answer for with regards to rampant crime and a lousy justice system which really seems to perpetuate things.
There are positives though with lots of open space, clean air, high-quality local produce (but not cheap).
If you're looking for a quiet lifestyle in a clean, pretty country with high-quality food and MOST IMPORTANTLY, you have the money to afford it, then life in New Zealand is pleasant. If you're looking for excitement and / or don't have a lot of $$$, then it might not be such a good choice.