The place is strategically located: it is literally around the corner from São Sebastião metro station, which is on the same metro line as the airport. From São Sebastião you can also easily get to the city centre.
The apartment itself has been newly refurbished, so it is equipped with more than you could ask (although if you have issues note that it is on the fourth floor of a building with no elevator).
The room was just as shown in the picture, and although housing prices in Lisbon are generally low, these are competitive ones.
The host was very helpful in providing all the information I might need and waited up for me even though I arrived rather late at night.