This was a truly fantastic stay. As another reviewer mentioned, the place is bigger than it looks in the photos. The bed is (I believe) a queen, and there's also a chaise lounge in the bedroom, along with a closet, bookshelf, and table and seating area. The bed itself was quite comfortable. The kitchen/dining room has multiple seating options and a table, and the bathroom is quite spacious as well. The views from all three rooms were of a canal and, in the distance, the top of the Basilica of St. Mark's belltower.
The apartment is located in a very convenient part of town for catching boats to the airport, Murano/Burano/Torcello, and the train station/bus station. San Marco and Rialto are both fairly short walks (though bring a map on your phone).
The best part of the stay, though, is having Cristina as a host. She was very communicative, very accommodating of my travel needs, and a pleasure to interact with. I recommend this apartment very highly!