A beautiful room, with its own ensuite bathroom, in the upper level of Donatella's top-floor apartment --so you are at the top of the building, and since there are no high rises around, except of course the Duomo, you are basically at the top of the entire city). The views are extraordinary, from the room itself, and from the 2 terraces that you are also allowed to use.
In addition to the all-around beauty, the room is also very comfortable. The bathroom, ample and spotless clean. The bed, very comfortable. The heat is good too (it was December, Florence was cold, but the room was warm).
Donatella was welcoming and warm, from the very first moment that she let me in and explained everything about the doors, keys, and terraces, to all the other times I happened to run into her while exiting or entering her apartment.
Finally, like everybody else said, you can walk to everywhere in Florence from the apartment. And you can walk back late at night and feel always safe.