Carmine hosted us in the city centre of Florence. My brother and I shared a very clean, comfortable and spacious room. The house was shared with other guests and was remarkably clean (kitchen and bathroom shared). Although we were a little too early, Carmine was there and invited us in very kindly, saying that it was not a problem. He also gave us nice recommendations to have dinner and a drink, which helped us a lot.
A real advantage of the place is the central location: you are at the Duomo square in 5 mins and there are so many good restaurants.
If we would stay in Florence another time, we would like to stay there for longer for sure!