We spent 3 nights in the hotel. We had a junior suite which is very recommendable. Spacious and rather luxury equipped. Bathroom is beautiful designed. After checkin a complementary bottle of Prosecco was served in the room. We don't know other rooms.
Breakfast is international standard. Water is better to buy outside, you get bottle for 1 EURO almost around the corner.
The location is a good starting point for sight seeing as a vaporetto (public boat) station is next to the hotel. The view to Canal Grande is ok, as later the night it is rather quiet as we could even sleep with open windows.