Overall, it was a good stay, but we had some troubles.
Pros: cheaper bc it's not actually in Venice, host is very friendly and helpful, free breakfast and tea (bread and jam), nice bed.
Cons: we had some communication issues with the city tax, but we figured it out, it will be 2.50 extra per night, per person. According to Alessandra, there is some sort of central heating law (can't go over some temperature)--so it was freezing all night. Lastly, it's out of the host's control, but the water pressure was extremely weak.
It was good for value, but I might have rather stayed on the mainland of Venice.