We had a great stay at Alessandro's apartment. We were met by his son for check-in, he was very nice and told us all we needed to know about the place and neighborhood. The apartment is exactly as advertised, no surprises. Pictures are accurate, and the location is easy to find with the given directions. Definite plusses because those aren't universal givens.
The best part of the place is location. You can walk to everything very easily, including the train station. We never had to take public transportation for anything in the city.
On a side note, we did take the train out into the Tuscany countryside to a wine and olive oil farm called Tenuta Chiudendone. It was an excursion offered by Airbnb and it was absolutely incredible! Definitely check that out during your stay.
The apartment is close to lots of excellent restaurants as well as a food market with lots of restaurants inside with seating for trying out different foods.
The second best part of the apartment was the A/C! It was really hot during our June stay, but we turned on the air conditioning in the bedroom about 30 minutes before we went to bed and slept in cool comfort each night. Definite plus!
All in all a great place to stay when you visit Florence all at a reasonable price for the area. We thought it was perfect and won't hesitate to stay there again if we visit the city.