Massimo has been a great host, we spent two lovely days in Venice. He collected us from the parking lot at the same price of public transport (7'5€ per person) and left us in the appartment's door, which is very convenient if you carry luggage. Moreover, he offered a boat trip through the channels (50€ 1/2h).
The flat is big and the beds are comfortable, we could cook some pizzas and had breakfast there, there is a supermarket nearby. All in all a wonderful experience at a reasonable price taking into account that Venice is a very expensive city.