Alessandro and Azadeh's flat is in an amazing location just of the Piazza del Duomo so you are right in the middle of the action. Although the flat is very central it is very quiet and throughout our 5 night stay we weren't disturbed by any noise apart from the Cathedral bells at 7am each morning!
The hosts are really helpful and friendly. Azadeh met us at the flat for check in and she spent a good amount of time with us explaining how to get about and see the sites. She even had a list of good restaurants handy - try Gusta Pizza; you wont regret it!