We had an amazing stay at casa Barthell. The location is easy to reach and the views around the grounds are breathtaking. Our cottage felt private and it was very relaxing. Teresa was an amazing host and helped with any questions we had. The pool was also perfect for the hot July weather.
Tip for other visitors without a car - the hill isn't really walkable. We used the apps AppTaxi and It Taxi to order taxi's to Florence and Galluzzo. If you can't order from in the app you can easily call the taxi company from the app. It's around 15€ to get to Galluzzo where there are restaurants, a big supermarket, and connecting buses. It's around 30€ from casa Barthel to the outer Florence area.