Everything was very nice and clean, check-in was easy. Our only minor hassle was being able to get our gear removed from our vehicle in a busy small parking space (probably common for almost every metropolitan old world capital, not a complaint) parking was simple ($35 a day, directly north about 100 feet past the underground, Total distance about 250 m).
The apartment has a wonderful layout and was in the middle of everything great.
Would strongly encourage you to read the reviews of Meson Andaluz Lisboa, may have been our best meal in Portugal(We ate in Michelin star restaurants twice), be certain to try the cappuccino martini, ask for Barry.