The room is big, and could easily fit 2 person inside, even though they don´t offer this option (was traveling alone anyway). The bed is comfy and the neighborhood is nice. Room is clean. You are not allowed to use the washing machine. You can rent one for 6 euros about 20 footsteps from the apartment.
Its more like a hostel than the usual AirBNB experience, but i got to know some other nice guests at the breakfast. By the way, breakfast is simple, like in any other hostel.
Bathroom is good, but you share with 6 other guests. Didn't have any problem with it, but if everyone wakes at the same time, it could get busy.
Considering the prices in Venice, it was a good experience. You can't get any cheaper without sharing the room or staying further away from the center.