The flat was lovely. It was very clean, had everything you needed and Sofia was a great host. She even left us little bits for breakfast and some goodies for our stay there. The bed was very comfy, space for your clothes and was a lovely place to rest after a whole day of walking around Venice.
We spent 5 nights at the flat and it was the perfect little place for our trip away.
It is based in a very nice area, above bars (which are not loud at all) and many very good restaurants (cheaper than towards the middle of Venice as well). The area of Cannaregio is peaceful and quiet and beautiful to walk around during the day and late at night before heading back to the flat. Also, it is very close to the water bus-stop to take you to and from the airport. The flat is also a 15-20 minute walk from the train station and a 20 minutes walk to St Mark's Square (Piazzo San Marco).
I would recommend this flat and will be staying again if we go back to Venice - which will definitely happen.