We met Pablo, a friend of Ugo, at the apartment. He is a very nice guy and explained everything to know about the apartment and the area around (restaurants, the best Gelateria...). The apartment is located near the Campo Santa Margherita, a lovely place to be with a lot of bars, cafes and restaurants. The area is not that overcrowded by tourists as others.
The apartment was very nice and we had some great days in Venice! Thanks Ugo!