We all had a great stay here! It is much bigger than in the photos and has a little balcony off the living room. The hosts provided us with breakfast food and a bottle of prosseco on our arrival which was very kind.
The airbnb is a 2 minute walk to the waterbus stop but we usually walked everywhere as it is a 20 minute walk straight along the waterfront to St Marks square. The area is very pretty with a couple of nice deli's and bars and much quieter and more local than further up the island, we preferred the quiet on an evening after long days in the busy city.
If you are visiting for the Biennale it is just beside the Giardini and 10 minutes walk to the Arsenale.
We would definitely stay here again.