In one word: 5 stars.
Details: Now about the apartment: It is a very cozy 2 bedroom with 2 bathrooms apartment. One bedroom is upstairs and need to climb using a circular staircase. Living room, kitchen and bedrooms are very spacious. Comes with fridge and a freezer. Upstairs bedroom comes with an air conditioner and the other bedroom and living has air coolers. Washer is small and cute. No dryer.
Location of the apartment is great. It is 30 secs from Galleria dell’Accademia and 5 mins from Duomo. Walkable distance from Uffizi Gallery, Ponte Vecchio and Boboli garden. There are two markets within 1 to 3 mins of walking. A walk to Mercato Cenrtale is worth it. You can not only get fresh vegetables and fruits there, but the street food on the 2nd floor is is excellent.
Chiara is very responsive through email and text. She allowed us to check in early as well as keep our bags in her own house for couple of hours the day we checked out. She had brand new milk carton in the fridge, cookies and coffee when we came in. This avoided a run to the market as soon as we landed, that was a great help. She is very friendly and a good landlord.
We highly recommend this apartment. Very safe and located absolutely in a great location.