We had a very nice stay in Luca's apartment for 4 nights in the middle of June. It is a clean apartment with fully equipped kitchen, comfortable bedroom with a very nice view. Luca is a very nice host that was always in touch. He met us, provided keys and all the details about the apartment. It might be a little hot inside in summer, but opened windows, ventilators and shutters really help to feel good. Location is wonderful: it's very quiet outside, there is a park nearby, S. Elena boat station and Coop supermarket 7-10 min walking distance. It takes about 15-20 min to get to the center.
I would also note that there is mandatory Venice city tax of 4 Euro a day per person per night with a max of 5 nights due upon arrival in cash to host, which is not obvious for everyone.
Unfortunately the speed of internet connection was very poor. I believe Luca would fix this.