It's very risky to trust the pictures. I know that the rooms and apartments at Bisanzio are not as nice as the pictures make them to be. The apartment is not a luxury apartment in any sense. It's just a typical Venetian apartment, where a better off Venetian would live. It's not huge, but has a decent living room and kitchen, and a separate, nice bedroom. In the hotel i haven't stayed in the room with the balcony. I've just stayed in the superior loft, without the balcony.
I'm sure Giorgione is doing a bait and switch. They specially stage a room, but it is not the room that you will get. Since it's right off of Strada Nova, almost anywhere you want to go to from there is going to be packed densely with tourists. Corte Grimani is just as bad, perhaps worse. It is next to Ponte Rialto, just down the street and around the corner from the Venice Disneyland store. That area is packed with tourists. In both of these places, you will be in thick crowds.