The good: if you have never done a Polynesian-culture-type thing, this is pretty good for appreciating some of the Maori culture highlights.
The canoe procession, and the explanation of tools and instruments used, were both good. Being picked up from your hotel (to and from) is a major plus.. The wine/beer/drinks to buy (not included in meal) were not overpriced, and ok. The food was okay—esp. the NZ sweet potatoes and the chocolate roll dessert.
The bad: Disorganized from the get-go. There were way too many people there — about 300 in a sort of open grass-hut (and let me say, I was worried about fire exits the whole time); the group leaders couldnt manage all the people, and groups got mixed up and reshuffled during the "tour." Some of the food ran out before everyone had been through. The different "leaders" did not work together; altho they are sincere and part of a family-owned tradition in this business, they cannot get their message across when they are trying to collect money from so many people at once. Our group "leader" selected a "chief," and then somehow suddenly another guy was drafted by someone else to go up on stage and be the chief, but many in the group did not realize who he was representing. A lot of the chanting and stages of the program seemed like they were boring the people doing them, so how do you expect visitors to react?