I would definitely recommend Rosa's place to any person desiring to visit Venice.
It is located in quiet district (Cannareggio), but with plenty of restaurants and shops around.
The apartment itself looks even better than in the pictures. It is quite spacious and has all the amenities necessary to provide you a pleasant stay. You can see the care for this place in every small detail. I would also have to say that the bed was one of the most comfortable I have slept in.
As for Rosa, she is a very kind and sympathetic host, that gave us lots of local tips and was opened to any query from our side.
It would be a pleasure to go back to Venice and stay in Rosa's place.