This cabin is gorgeous, with one of the best views in New Zealand. The owners are fiendly and responsive.
My only negative point is that the upper level (bedrooms) and lower level (everything else, including bathroom) only connect via an outside staircase. If you have to use the bathroom in the middle of the night, you must go outside (potentially into freezing rain), do your business, then go outside again to get back up to bed. This won't be a problem for a lot of people, but for anyone with weak bladders it'll be annoying.
Otherwise, no complaints. 8/10 would stay again.