Olga's room was absolutely beautiful, exactly as the photo suggested (which we were nervous about since it seemed too good to be true!) in a lovely apartment with a great kitchen, lots of facilities and in a quieter location in Venice. The room was within a bigger apartment with 2/3 other rooms, but we were the only ones there at the time - even with others staying, there would be lots of privacy and each room is lockable/secure.
The only things we would tell future travellers is that the apartment is in a great quiet street close to San Marco, but is about 45 mins walk from St Lucia station and we found this distance hard to walk in the heat/crowds with our travelling backpacks! I think boat transportation is possible, though, for those unable/not wanting to walk so far from the station. Otherwise, a fantastic find.