The apartment is situated at a 10 min walk from San Marco Square. The Giglio stop for waterbus is 50 meters away. You don’t have to waste time travelling through boat every time to explore the city. It was a great stay!
However, if you want to travel to nearby islands then you will have to change 2 waterbuses. The restaurants outside San Marco are much cheaper but boat ride will cost money if you don’t buy 24 hour pass.