Wonderful apartment! The pictures don't do the view justice. We arrived at night so we originally did not get to see what was really outside our window. However, the next morning we were greeted with a beautiful sight of Murano on one side of the apartment and on the other, traditional Italian rooftops. The apartment was sparkling clean and though we didn't meet Giacomo, we met Giulia who was lovely and very understanding when our transportation ran late. The apartment is definitely comfortable for two people, and could likely fit another 2 on the pull out couch but then you'd lose most of the space in the living room. It's located less than 10 minutes from all of the attractions you'd want to see, and though the area is quiet and away from the busyness of the town center, we felt safe every time we came home at night.
Pro tip: Pack light because you'll go over various bridges to get to the apartment and carrying a suitcase up and down those bridges is not fun. But that's part of the Venetian experience!