Great place to Stay in Lisbon.
Space is super confortable, room has a nice balcony to watch the street.
Kitchen is super spacious, has two showers, and two separate toilets.
5 minutes by metro to Cais do Sadre or Baixa Station, so perfect visit that area.
You can walk anyways to most areas, but mind that Lisbon has plenty of steeped hills so anywhere you go, you need to be in shape.
10 minutes to Airport and 5 minutes to Orient Station, so perfect when you arrive or leave the city.
PS: Mind that you need to go up 4 floors to reach the apartment. Not a problem on my case but if you carry heavy luggage it could be tough.