The chalet is one of the most unique and unusual places you will stay anywhere in any of your travels. We give it 5 stars on character alone. Bed was also very comfy and location is convenient for all things Waitomo.
The cons didn't matter to us but you should know that it's not an extremely private location. It's so unusual to passers by that there's a pyramid shaped air bnb in the parking lot of the best restaurant nearby that they can't help but peer in.
Also, the loft upstairs would benefit from a better fan but again still going with 5 stars because you will never find a place with more character and it was overall a very comfortable experience.
It was also easy to find, not sure why other reviews said otherwise.