The apartment was lovely, and situated very conveniently to the Duomo, a supermarket, and several restaurants, cafés, and bars. We had arrived later than expected and weren't able to alert Alessandro right away. Tomaso was able get us into the building about 15 minutes after we arrived, which was impressive, considering.
Tomaso helped us up with our luggage and then explained the apartment, the area, and the checkout process clearly and thoroughly, letting us know how best to get in touch should we need anything during our stay. (There was work to the exterior of the building, and Tomaso let us know that it wouldn't start until 10am. I didn't experience any inconvenience from it.)
We only had a few short days in Florence, but I would have stayed for a week very happily in this apartment.