The apartment is bright and stylish as per the photographs. The living room kitchen is large and well kitted out. The bedrooms are small but they have very good storage so are perfectly comfortable. The two bathrooms are really convenient. Everything seems to be in good condition and nicely decorated. The building is secure and the communal areas very clean - the lift is a bonus I have not had in any previous stays in Lisbon!
The location is convenient: the 28E tram stops right outside, and it is a 10 - 15 minute walk to either Rato metro station in Principe Real, or Baixa-Chiado station, from which you can go anywhere further afield. The Mini Preco supermarket is 5 minutes away and will cover everything you'd need.
The flat overlooks the parliament which is quite a lovely building to overlook and interesting to watch a foreign delegation arrive (with accompanying brass band!). It is a busy road so there is traffic noise from about 7am to 1am. I am a light sleeper but was fine with earplugs as there is double-glazing throughout the apartment.
My only suggestion is that there be some instructions provided as to how to use the air conditioning. Rather than units on the wall you turn on and off with remote controls, the apartment has a built in combined air-conditioning and heating system. This is much more sophisticated but it means it's more complicated; when we arrived there was a programme set which stopped it coming on and we couldn't override it until messing about with it for ages and setting a new programme. It would be better if there could be simple instructions as to how to turn it on when needed as it's not obvious especially if you come from a country like the UK where air conditioning isn't used (here you will find holiday rentals explain how to use the central heating!). So if like us you are specifically booking a property with air conditioning it's best to check with your host when you arrive how to use it.