Can't recommend this place enough! Location is fabulous, just two min walk and you are at the Duomo piazza, the main drag of Florence. The apartment is in a well maintained building, the front door of which looks very secure, medieval style. The place is quite spacious and has a huge terrace, shaded in the afternoon.
The host, Riccardo if very responsive and eager to help. Generously offered us to stay two hours past the checkout time.