We stayed over christmas for seven nights. The cottage (bach) has everything you will need and a top notch new bathroom.
The sundeck is awesome and the views nice.
Unfortunately the cottage is not that secluded as we thought and there are other houses around together with the highway next to it. So there is a constant volume of noice.
However, in terms of location to Rotorua and other hot spots in the area it is a very good location. Also the Okere Falls alone are worth a travel.
So all in all a perfect value for money cottage if you are not seeking absolute silence and retreat.