We had a lovely stay at Marcella's place! It was huge and the location of the apartment was great and very convenient for us to get around to all the sights. The area around the apartment is quiet and also feels very safe at night.
Marcella was also very responsive and had someone meet us at the vaporetto to direct us to the apartment when we reached (which was only 5 min walk away - good since we had huge luggages). Would highly recommend this place!