The apartment is in the perfect location. Close enough to walk everywhere, but far enough away from the noise. Super close to the airport ferry (5 mins walking) which was very helpful. The host was quick to respond and gave us amazing advice for seeing the city. She even provided umbrellas for our stay because it was stormy most of the 3 days we were there.
The only thing we would like to have was a better working fan (possibly more than 1 fan would be ideal as well). There is no AC in the apartment so it got incredibly hot inside at night. We couldn't open the windows because the mosquitoes were very bad (due to all the water outside) and there are no screens on the windows. There was one fan provided but you had to put your hand just a few centimeters in front of it to feel any air. I do understand Italy/Europe generally doesn't have AC but a better fan would have made sleeping much more comfortable.
Overall, we enjoyed our stay because the host was amazing and communicated well with us and Venice itself is beautiful.