Just stop looking for a BnB in Venice because there is not a better one than this apartment. Inside, the apartment is spotlessly clean and Marino has supplied everything you might need. The kitchen is large and plesant to cook in while the family gathers at the dining table. There is a huge fridge and freezer. There is an American style AND Italian style coffee maker, a panini press and plenty of dishes, pots and pans to cook if you want to.
But the real treasure here is the location. This morning I walked to San Marco Square in 20 minutes (at 7:30 am, no crowds) the Vaperetto (or water bus) stop is less than 10 minutes from the apartment and will take you up and down the Grand Canal. The neighborhood is insanely quiet at night and you feel that you are in an authentic neighborhood with very few. tourists.
There is a great grocery store in the same plaza in which Marino will meet you, near the Tim Store. Be sure to get him to point it out for you. It is in an old theater and worth a look even if you don't need food. But we stocked up on cheese, bread, fruit, prepared tiramisu (delicious! As good as expensive restaurants) and a whole cooked chicken (less than 4 euro for the bird).
There is a kayak outfitter just steps away and 2 of us went for a sunset 2 hour kayak trip through the canals. If you leave the apartment and head for the Orient hotel, the kayak place is the alley between those two points)
Marino is kind and generous. This was the best BnB so far.