Giovanna's flat is beautiful and a great place to stay in Florence. It has everything you need, from a nice dining table in the living room (and on the wonderful balcony) to the equipment of the kitchen and the air conditioner.
The bed was also really comfy. All in all we loved staying here because it is very close to the city but still very quiet. There's a great pasticceria (Buonamici - try their cappuccino and pastries!) and a supermarket just around the corner.
One thing we didn't mind but could be important for others: the flat is located on the top floor and there are a lot of stairs to climb. So if that is a problem for you, you should probably find something else.
We loved staying here and would come back anytime :)