We had a wonderful stay at Cinzia's. The flat is on the ground floor of a 14th century building and the living room windows face a canal with frequent gondolas passing by, and a large square with an historic church. Even though the flat is on the ground floor, there is still quite a distance down to the canal so you still get privacy. The location is perfect, in a relatively quiet area with quiet streets and local shops and restaurants all around. Walking to Rialto Bridge or St. Mark's Square takes literally just 5 - 10 minutes, so it is within easy reach of the more touristy places as well.
The kitchen is fully equipped with all you would need. The bed was comfortable, however a bit short for a tall northerner such as myself. Some comments here mention being woken up early due to the b'n'b upstairs. We did not have this problem, but we were there in April, so it was not during the busiest tourist period.
I would fully recommend this flat!