We have stayed two days at Giovanna's place and it is a good experience. Firstly, the location is quite convenient, close to the train station and even without public transport, you could reach most attractions on foot in 30 minutes. Secondly, the room is clean and quiet at night and there is a small air conditioner, shared bathroom, microwave oven and fridge. More importantly, Giovanna is very nice and helpful, and she introduced the interesting sights in Florence to us when we arrived. The checkin and checkout process is also facile.