Luca was a wonderful host. Communication was timely, he specially arranged a meetup right at the water bus stop near to the apartment and led us to the accommodation. He gave us recommendations in the area which we appreciated. We tried the seafood restaurant he recommended and it was indeed fresh and nice!
The apartment is nicely furnished, well equipped, bedding is comfortable. As stated in the post, there is no service lift. There is a flight of stairs to the building door and another short flight to the apartment itself, not a big issue. Rialto area can be really bustling, however the location of the apartment is peaceful despite being so close to the action.
Certainly not the cheapest, but good location and quality seldom comes cheap. I highly recommend staying with Luca.