I stayed here for 3 nights with my 14 year old daughter to explore Chch.
We both loved our stay. Everything is immaculate, super clean, and well thought out. The owners are very friendly and helpful. The location is in the CBD and therefore in walking distance of The Riverside Market, The Terrace, etc etc..
Even though we were in the centre of Chch the noise levels were fine.
One funny warning. The motel next door is a carbon copy. I found myself walking into my room thinking our gear was gone. Turned out I was at the hostel next door. Turns out this happens all the time. Just funny. No problem at all. I had not been drinking btw. :-)