We stayed at Tommaso's apartment for 3 nights. There were always quick responses to our messages. Tommaso's father Ferruccio was there at the time of check-in and even helped us carry our luggage up. We were provided with a complimentary bottle of wine which was a really nice gesture. The apartment is on the first floor and there is no elevator- which is mentioned in the apartment description. The area is in a traffic restricted so it is quiet. You get the view of the river from the window. The important sights are walking distance and there are plenty of restaurants and cafes in the proximity.
The host was very friendly and kept our luggage for the day, after checkout, while we made a trip to Pisa.
For us a family of four, the apartment was a little smaller than what we would have liked. Also, we did not discover the additional crockery and glassware till much later. It would have been nice to have been explained in more detail where everything was.
But over all a good experience.