I can't say enough wonderful things about Paolo's apartment. They had clearly listened to guests' feedback previously and upgraded the mattress (which rivaled my own at home) and made sure to ask about any issues. Upon my informing him of a minor issue (just to make sure we didn't get dinged), Paolo immediately bought the part and offered to drop it off. The ventilation system in the apartment was amazing and while we were warned about opening our windows (mosquitoes are an expected hazard of being in Venice), the room was never stuffy. The location was extremely ideal, close to all the major sights, but off a slightly less busy street.
My only feedback to other potential people interested in the listing is that the location was slightly difficult to find from their recommended location and while the boat trip would have been longer and luggage more difficult to manage, I wish we had gotten off the public transportation at St. Mark's or gotten a taxi.