Staying at Naike's place is a great choice if you want to live outside of the huge tourist areas in Florence. It was very relaxing to come home after a long day out to a chill apartment, in a nice area with many locals. Close to the apartment you can find parks, restaurants and grocery shops.
Note that outside of the house, a train track passes with frequent trains. We were a little bit worried about this, but the host provided earplugs for the first night and we slept without any issue by buying some more from a local pharmacy.
The ratings provided are relative, meaning that we judge what was advertised and what was provided. For the price and our expectations of the stay, we were very content with everything and had a great time in Florence!