This property is more of a bed-and--breakfast than a hotel. It is centrally located, and only a short walk from the St.Angelo vaporetto stop.
The room was nice:definitely lots of character, with a beautiful Murano (?) chandelier and wall paintings. The room was clean but the bed was quite small for the two of us. It is smaller than full size but bigger than a twin size. It really is a bed for 1 person.
The downside: do NOT arrive late at night because it is really hard to find this place. We were close to despair after walking maze-like streets for some twenty minutes at midnight, knowing that we were circling 180-foot radius. The is no sign for this property except for a tiny metal plaque that you can't see unless you know it's there. There is definitely a need for some sort of sign. We asked many locals who had never heard of the place because it is so obscure. There is a small restaurant directly across from Casa, and even people working there didn't know about it! Luckily for us, one of the chefs knew we were standing in front of it.
Another issue is the smell in the room. I don't think it's anything in control of the owners, but there is a very unpleasant odor in the room most likely stemming from steaming pipes in the basement. The room was cold or too hot when heat came on.
We didn't order breakfast. It came for an additional fee of 5 euros, and included coffee, juice and croissant. We chose to eat at a nearby cafe by the theater, which I would highly recommend.