Our experience couldn't have been better.
Marcella was very sweet from the get-go, communicating very well all the details of the apartment, picking us up from the ferry (quite late!) so we don't get lost in Venice, and giving us a warm welcome with fresh cherries at the apartment. During out visit, she's always been quick to respond, stopped by to check-in when a small issue arose and gave us many recommendations of places to explore nearby.
The apartment is great. Quite spacious, with good AC and amenities. The building itself is something else! The building is the "Palazzo Zen", very beautiful inside and out. The building entrance hallway is very impressive (even if, like everything else in Venice, has seen better days).
The locations great, being in a quiet more residential neighbourhood (Cannaregio). It's within a short walk to several very nice restaurants. It's also right by the boat terminal where the airport boat stops, making arrival very easy.
I would love to stay in this place again in the future.