Overall we enjoyed staying at Francesca's place. The flat is clean and nicely decorated. Francesca was kind to accommodate our late check-in and brought us some pastries for breakfast, which was a very nice touch.
The location is great: only a few minutes away from Ponte Vecchio on foot and really close to a good supermarket and restaurants.
Our only minor complaint was that it was a bit cold in the room due to the chilly weather and the heater currently provided is not powerful enough to warm the room up.
I'd also recommend that guests bring ear plugs, as it may occasionally get noisy during the night