We loved staying at Marisa's place.
It is really lovely and we felt at home.
The view for the canal is amazing. Another thing we loved is that the kitchen is fully equipped, that helped a lot preparing some meals.
The location of the apartment is really convenient, better than that, it is perfect. We could walk to most of the island and visited plenty of places by foot.
The two main bedrooms are comfortable. For four people it is fine, but the sofa bed it is very uncomfortable and old. If you have five or more people it could be a problem.
This is one of the best accommodations I've got in AirBnb, it looks like I was hosted in a complete house, with people living on it (but actually not).
It made my stay at Venice unforgettable.