We had a really nice stay in Gaia's apartment, we met her when we arrived and she was super friendly and gave us lots of helpful advice. A lovely bottle of local wine too!
The apartment itself is really nice, with stylish decor and large, cool rooms. A perfect escape from the crowds and summer heat. Location was perfect for us as we could get to and from the station in five minutes, but also a short walk to the Duomo.
Overall, a really great experience. Just ensure you don't mind climbing a lot of stairs to get up there.