My husband and I had a great stay at David's place. He was very helpful with any questions we had and very quick to respond.
The apartment was very clean and a relaxing, quiet place to stay after a day out in Florence. The bedroom itself is very spacious.
Location is fantastic. It's walking distance to many of the sites. It is also very close (walking distance) to a bus stop that can take you to the main train station.
We did have a little issue with the wifi going in and out, but that might be just specific to when we were there.