Excellent accommodation, the place is definitely bigger than the pictures make it look like. Everything is clean and works. From the kitchen to the bathroom. Even better, the place is in the centre of Florence and only a 5 minute walk from ponte vecchio and 10 minutes from the Duomo. Furthermore, Uma and Tina are incredibly friendly hosts offering us little gifts and even allowed us to store our luggage with them after check-out. Also, the house is incredibly cool, and you can feel it after a hot day.
If you are considering to book this place, definitely do it. You won't regret it :)