Giovanni was a fantastic host! From the booking process, all the way to check-out, he was very easy to communicate with. He was nice enough to meet us at the Ospedale boat stop and guide us through the narrow walkways of Venice to make sure we checked in alright. He also provided plenty of local suggestions and made sure we knew how to find some great food!
The apartment itself is in a lovely quiet area that is mostly residential, away from the crowds. My wife and I were able to walk to San Marco square in only about 15-20 minutes, so it was still centrally located enough. It was also super close to several boat stops, making getting around the island easy.
I would highly recommend staying at Giovanni's if you are looking for a quieter place in Venice, away from the main tourism noise but still close enough to access everything Venice has to offer with just a quick walk.