Natalia's place is great. It's in a fantastic and unique location, and is surrounded by everything a person could want nearby. Take a day or two and enjoy all the stops on the tram that is right at the base of the building.
In a city that has been so heavily shaped by the traumatic 2010/2011 earthquakes, this place is surrounded by recent history. I'd recommend staying here simply because of the location, but the fact that it's super clean and comfortable makes for that much more fantastic of a stay.