This is what Airbnb should be about - a wonderful place in a great location with lovely hosts. Luca and his wife were both very nice and helpful - you really got the sense that they cared about their guests and wanted them to have a great experience. Because they live above the studio, we were able to leave our bags with them when we arrived early, which was convenient.
The apartment itself is very stylishly done - it really has everything that you might need (no TV, but you don't need that in Venice!!). It's a good size for one or two people. Very quiet location, even though it's only a short walk to the major sights and very close to the vaporetto stop.
All in all, this is a perfect place to stay - highly recommended!