Sandra's place is very well located, 10 minutes from the Piazza Maggiore and just across the street from the window towards the canal. Situated at the 1st floor, it is very accessible. We very much liked the local addresses and Sandra was very nice.
Be advised, if you are sensitive to the cold or dampness: the old building makes the apartment quite humid (we felt it in the sheets), and the air conditioning heating can do little to improve the situation.