Elisabetta is a great host. She is very nice, helpful, communicative and gave me lots of useful tips about finding my ways around Florence.
Her house is very clean, pretty and it has a lovely garden that transforms the entire environment into a magical place. The house is way better in live than on pictures.
Location is also in accordance with the price. It is not far away from the city center. You can walk to the center within 30 minutes or take the bus/tram for 15mins. All in all I would recommend Elisabetta's place.