The apartment has several private rooms with shared common spaces (living room, kitchen, two bathrooms, and two wonderful balconies). The room I stayed in was looking at one of the main streets, so there is a bit of traffic noise, but I didn't mind it.
The location is great-20min walk to Bairro Alto and great connections via metro to the train station and the airport. Pedro (the host) is super helpful and is just a text away.