Loved the Langham ... my only disappointment was that I couldn't stay in Auckland. The hotel itself is beautifully appointed with dark wood and upscale tile in the rooms. The beds are super comfortable ... the amenities are above average. I would love to go back and would definitely recommend this hotel to others.
I can't comment on the location as I was driven everywhere I went, but it seemed within a reasonable distance to the University of Auckland and somewhat central to other attractions.