We had a great stay in Roberto’s place. It was comfortable and close enough to walk to all the major sites in Florence. The kitchen is sufficiently equipped for small meals (we made breakfast every morning) and while we could hear the neighbors during the day, it was super quiet in the evening.
You have to be comfortable climbing stairs (there isn’t an elevator) but if that’s not issue, then this place is a great spot in Florence. We would happily stay there again.