We (family of four - two adults and two teens) stayed at Dianora in October and it was lovely! The view is amazing as is the location. The apartment is exactly as described and the owners are very helpful and communicative. We did not use the A/C but they are present. It was cool enough that we could open the windows or leave them shut at night. There is one bathroom but the hot water was plenty for 3-4 showers within an hour. Soap/shampoo/dish soap were all provided.
The apartments in the building (1-3 floors) are under construction (Dianora is on the 4th - top floor) but this was not a problem and did not affect the top floor. Plaster dust in the hallway was the only issue. We would definitely stay there again.