My husband and I stayed at Maria's place for three nights and we enjoyed it very much. Maria and her daughter, Valentina, were both attentive and flexible. Although our bus arrived at Florence very early morning, they waited for us to let us come in. Although Maria cannot speak English, she is communicative and always took care of us. In addition, Valentina helped us in need because she can speak English.
Also, her house was cozy and sparkling clean. It was much better than the photos on the listing. The room was enough big for us with very comfortable bed. We even heard birds singing in the morning.
Plus the location is perfect to explore Florence, it took five minutes to nearest tram stop and the the tram took us directly to the old city in 10-15 minutes.