Perfect place for 2 or 3 people! The location is fantastic, just a short distance from the train station. Easily walkable with luggage. The hosts were very helpful and make you feel like family. The apartment was very clean, the wifi was excellent. The best part is that it is easy to find once you get yourself "lost" wandering the streets of Venice.
The pictures on Airbnb don't show you but the beds are two singles up some stairs in a loft setting. They were comfortable if maybe a little firm. We did not use the pull out sofa since there were only 2 of us. We also had no need to use the kitchenette but it appeared to be very well equipped with everything you need to cook a meal.
The place is on a very busy "main" road but once in the apartment you could not hear anything, it was so quiet. We slept with the windows open and only heard birds greeting us in the morning.
Nothing fancy but I would definitely recommend staying here. You won't regret it!