I get the sense this is an AirBnB host who is burnt out from hosting. Their communication before check-in was fairly rigid and entailed a list of additional house rules - which was fine, maybe they've dealt with terrible guests in the past and find this communication style to be effective in avoiding problems. That said, upon our arrival we noticed something was potentially broken. Per the house rules listed in the host's prior communication, we followed the instructions and reported it immediately. Additionally, we made it clear we weren't asking it to be fixed, but wanted to make them aware. We received an immediate response, but it was discourteous and woefully unhelpful to say the least. I would have opted to find a different accommodation with a more welcoming and helpful host.
That said, the location is great. It is close to many of the "must sees" in Christchurch.