The location is excellent. We met Andrea's friend Simone at San Marco/Valleresso and he showed us the apartment and neighbours. His information was useful. Near the apartment there is a supermarket so we could get some foods and water there.
The bed room, the living room, and the kitchen were all okay. Only the bathroom was not comfortable like other reviewers have already mentioned. The shower space was small and water remained on the floor and flooded even the outside of the bathroom after taking a shower. Therefore we had nowhere to change and put our clothes in the bathroom.
If you bother to have an excellent location, this place is perfect. If you don't, anyway Venice is a small city so you don't have to worry about the distance so much.