Alessandro's apartment is awesome if you want to explore Florence and it's historical areas. It's located two-minutes away from a supermarket and a bus loop. The Duomo is a five-minute walk away, as are most of the other attractions.
The apartment itself is fully-stocked and we cooked quite a few delicious meals in the kitchen. It is also a fairly large place with lots of space to relax in. We really enjoyed the comfy pillows as well.
The bathroom confused us at first in that the shower drained through the toilet and flushed every few seconds. Wasn't a big deal though. The apartment was also slightly cold and damp, perhaps from the open basement, but we just left a few windows open.
All in all, we were impressed with the place and definitely enjoyed our stay!