The apartment was advertised for 3 people but turned out to be too small in fact. There are 2 parts separated by a courtyard. In the first part there is a small room that only fits a foldable couch, and a bathroom. The second part is bigger with another bathroom, a kitchen and a full bedroom. The two of us ended staying in the apartment while the third person moved to a hotel. Beatrice was responsive and refunded us for the stay promptly.
The apartment is in an old house but newly refurbished, especially the bathrooms.
I liked the area, it was very quiet for Venice. Only a 10 minute walk from the train station and 20 minutes to San Marco but there are very few tourists around.