Lovely apartment with many unique features and right where the action is by the Rialto Bridge. The view from the altana is amazing and probably gives you one of the best views over the city which you will get anywhere. The colours on the rooftops and buildings cast by the rising and setting sun are only available from a height such as Chiara's altana and the photos which we got of the rising and setting sun and moonscapes were beautiful.
You will be much fitter than you were when you arrived after having to climb the 90 steps to and from the apartment however.