This was one of the best AirbnB experiences so far! We rented the apartment for ourselves (a couple and a baby) and my parents because of a wedding in Malamocco. The place was perfect walking distance from the wedding venue (10min) and also good for a walk at the beach. Other than that I would say a car is recommended to get to ferry terminal and stores, but this is for convenience reasons mostly.
The communication with Giovanni was excellent. The place was spotless clean!! And Giovanni had provided for so many extra amendities for our baby (crib, baby chair, baby bath, even toys) to make our stay convenient and enjoyable. I would highly recommend staying in Giovanni's perfectly equipped apartment by the sea :)