Massimo was a very kind host who tried to answer all of our request.
We were 7 in the flat and it was perfect for us. It is located in one of my favorite neighbor of Venice, Cannaregio, it's out of the tourist main road so you have the feeling to be in Venice and not in a museum. There is plenty of bar and nice restaurant on the Calle around, it's alive and not fake.
The flat is well equipped, luminous and quiet. All you need to enjoy Venice.
Massimo even made us a tour with his boat (for a convenient price) so you really have the impression to live in Venice for a time. I would definitely recommend this flat to any one !