I strongly don't recommend staying in the appartment.
When I arrived, I had discovered that I have only a room and a private bathroom instead of a WHOLE apartment, as it was written in airbnb description. I had to live together with two people and two cats (cats were wonderful, but anyway I would like to know about them before).
The owner Franca didn't apologize and didn’t accept her mistake. That is a person with whom you can’t discuss in calm any problem, she just throws tantrums and once even tried to push me (!).
I had to spent one week in this dreadful situation before airbnb had partly resolved it. I felt absolutely devastated after that incident instead of enjoying Venice.