Umberto and Martha are wonderful hosts. They are very easy to reach, which makes your stay much better. They love to answer every question you have about Venice, whether it is about parking your car or about finding the right places to eat.
Take note that the room can get quite warm and humid in the night and that mosquitoes find their way to you if you open the windows at night. Taking anti mosquito spray with us would have been a good idea for us.
Apart from that, 100% recommend!