This place is this tremendous - book it. The location just down from Rialto and right on the Grand Canal is surely as good as it gets (you get a sideways view of the canal from windows). The building and apartment oozes history - in a good way - but it's extremely comfortable and well appointed. We were 2 adults and 3 kids; this place was clean in a way that makes me blush with shame at the thought of my own house.
We had a late check-in made later by delays, but Paolo was efficient and friendly throughout.
We loved it here - can you tell?