The apartment is very well located with San Marcos square a few minutes away and the Rialto vaporetto station which connects you to the airport, bus and train terminals just a short walk away. It is well equipped and the hosts are very kind. They even left us some things for breakfast. They also met us at the Rialto station and walked us to the apartment which was very useful since finding your way in Venice can be tricky.
The sofa bed was in poor condition but I think they were going to fix it asap. It is also quite noisy as it is above a busy commercial path.
I would recommend it for a couple or a family with small children.