We had a wonderful stay in the apartment. The location is excellent. It was our 3rd time in Venice and next time I would definitely stay in this neighbourhood again. It's quiet but in 5 minutes by foot from very lively streets full of bars and restaurants.
Also, just around the corner, there is a great bar Enoteca Schiavi offering yummy cicchetti.
From the apartment, it's easy to reach every part of Venice either on foot or by taking a vaporetto (there are 2 vaporetto stations just in 2 mins).
The apartment was clean and well equipped. The bed was very comfortable. The kitchen missed a few appliances but we didn't cook much.
The check-in and check-out were very smooth thanks to Giovanna, the manager of the apartment. She offered us a booklet for Biennale which turned very useful for our visits to the exhibitions.
The only inconvenience about the apartment I can mention was opening the entrance door to the building. The lock is kind of broken (Giovanna informed us) so one needs lots of patience when trying different manoeuvres to turn a key and open the door. But that was a minor disturbance.
In general, our stay would be perfect if it weren't for mosquitos. Of course, the latter is not related to this apartment only but something to consider when planning a trip to Venice.