Best view in Lisbon is not an exaggeration! A really breathtaking sight, and this is what you pay for. Otherwise the apartment is good, a comfortable size and in a great neighbourhood! Some really nice spots on the street directly down the hill from the apartment - notably the wine bar Ladidadi. Also around the corner to the left at the bottom of the street (follow the alley around) there is an organic grocery with delicious fresh fruit and veg.
I agree with a few of the other reviews about the noise from people coming in the front door of the building - it is loud, but earplugs sort that out.
The apartment has aircon which was amazing during the heatwave whilst we were visiting.
Overall a great stay!