I can't recommend staying with Vanna enough! It was a wonderful experience from beginning to end. She accommodated an early check-in, and let us leave our luggage at her house on our final day so we didn't have to lug it around the hot city! Upon arrival, Vanna took the time to show us everything on the city map, and also provided some great recommendations. And she gave us a lovely bottle of dessert wine.
The location is great and you can easily walk to all of the main Florence attractions. The air conditioning was perfect to come back to after a long day in the sun. Would definitely stay here again!