We stayed in this apartment in late December for 3 days and we found it to be perfect for our needs. It is in a very quiet area, though at a walking distance to the main monuments and sites in San Marco and Cannaregio, and super close to the Laguna north where you can take the boats for Murano and Burano.
The apartment is well equipped, clean and spacious. The bedroom was cozy, Venetian old style, and the bed was comfortable. Free wifi is available.
The self check-in was easy and clear, the ideal solution for who, like us, need flexibility on arrival time! The only thing is that it was not possible to leave there our luggages the day we checked out, as other guests were coming the same day, and in the building there is no space where you can keep them, so bear in mind you might need to book one of the many lockers available in the town.
I love Venezia, I've been there several times, and I loved staying here. Definitely recommend!