We loved the place, the location, and the quaint vibe. We did not love the mosquito issue. It was extremely hot, and the mosquitos are so bad we could not sleep with the windows open. The plug in mosquito killers provided were insufficient. Mosquito nets would do the trick and make for a much nicer stay.
During our time in Venice, the temperatures were in the 80's (F) and it was so difficult to sleep with the windows closed. One of us slept downstairs on couch cushions to escape the heat. The down windows were open and we were later told that was not the smartest move considering rats in the canals.
If Air conditioning is not possible, Mosquito nets over the beds would help tremendously.