Vey nice, central location. A few minutes from metro, tram, bus. 10 minutes walking to the center of Baixa. The Praca de Commercio is 3 blocks away. We took Uber from airport and Diogo met us in front of the building at 11:30pm! It's on a third (fourth by american standards) floor with an elevator. Apartment was very clean, convenient and seems like recently remodeled with nice bathrooms. Across the street is small grocery store (opens at 9:30, daily). In the same block there are few reasonable restaurants and café with delicious pastries. On arrival we've been offered a glass of port, really nice touch. Kitchen was stocked with coffeemaker and delicious coffee which we enjoyed all three days of our stay. Every room has individually controlled thermostat, so you can set the temperature you like. One bedroom has noises coming from the street but closing the windows completely blocks the noise.
Overall this apartment has a great value and communication with the host was flowless. Highly recommended!