Massimo is a very thoughtful host.
He provided all the information necessary, was available when needed, and even left some food items in the kitchen.
The location is great: 1 minute to the water bus stop, 4-5 minutes to the Accademia bridge. Apartment is quite big by the Venetian standards. Both bathrooms are full size - one is en-suite, another is located next to the same bedroom. Air conditioning is in both bedrooms and the living room and worked very well.
The narrow streets, unfortunately, greatly amplified all sounds. So a normal conversation or a rolling bag sound in the street below felt like it was right next to you in the apartment. It might bother you greatly if you are a light sleeper.
Otherwise, I’d recommend Massimo’s place to anybody, if you can navigate a fairly short staircase.