This place fits the description perfectly. The location is great and gives you a good taste of Venice. Everything is walking/biking distance. You don't really need a car when you stay here.
I especially enjoyed the backyard that was filled with trees and flowers. There's a very nice gardner who keeps the yard clean. Plus, you get to meet other travelers in other units, which is the best part of AirBnB.
Pascal is super nice. I arrived a couple of hours late because of my flight time, and he accommodated me with a smile :)