We didn't meet Marcello but his friend was there waiting for us at the water bus station. She was very helpful and showed us good places to eat, shop and visit. Marcello was always available to answer our questions and he also contacted us just to make sure everything is ok. The water bus stop was only few steps away from the apartment which was really helpful since it's so easy to get lost in Venice we used to just wonder around the island and at the end just take the water bus and you get home. We were a family of four people and we all enjoyed our stay at Marcello's apartment. Will definitely go back to his place in the future.