If you're looking for a tidy, spacious, and private place to stay in Dunedin, I definitely recommend staying at Kate's place. The bed was just what we needed after long days out on hikes. The bathroom is very neat, and the kitchen area has cereals, tea, coffee, and snacks day and night. We didn't use the living room much, but that was available as well.
Kate was very accommodating, but also gave us our space, which was a great balance. It's also not far from city centre with about 10 minutes driving to the octagon. Kate also knows a lot about the area, and is happy to impart knowledge if you're looking for things to do.
Stay with Kate, you'll be happy you did.