Rosanna was wonderful about answering all the questions I had before we left home. Her sister met us at the vaporetto stop to walk us to the apartment and she stayed with us to answer all our questions and make some recommendations about the area. They had a map for us and Laura pointed out major sites and local restaurants, which was very helpful. I think they are wonderful hosts.
The apartment we were in was very comfortable and in a wonderful location, but it wasn't the one we had rented (because of a plumbing problem at the last moment) so I can't speak about the original apartment. If I go back to Venice, I would certainly check with these hosts about their apartment again.