My husband and I stayed here for a month while we were studying and travelling. It is located within walking distance (5-10min) of the Pitti Palace, the Ponte Vecchio and just outside there is the 11 bus that runs into the city centre. Although you can reach Piazza della Repubblica within 15 min/ train station in 20-25min walking.
The Oltrarno area in Florence has some wonderful places to eat, have coffee and wonder around. The apartment is close to Piazza Santa Spirito and Piazza della Passera (I recommend the gelato there).
I was grateful for the air conditioner as we were here in 40.c heat.
The pictures of the apartment are accurate and Benedetta was always good at communicating and following things up if needed. Her apartment is cosy and welcoming. There is no lift/elevator in the building so keep that in mind as you will need to take a couple of flights of stairs. I would stay here again if I was returning to Florence.