The place has been rated too small, but for a historic area in an European city, it has a very good size. Of course, you can find a bigger place but is not so easy in the old city quarter. This place is in a very lively part of Alfama. There is action until midnight which is a lot of fun. But for those who like to go to bed early, this might be a problem. The buildings are very close to each other and there is eco from the street and the fado restaurant.
Make sure you have earplugs or, if it is not too warm, you can reduce the noise by closing the windows. I have been traveling for decades staying in all kinds of acomodations and I can say this place is great. It's very independent and convenient. Close to downtown and to the cute streets of the Alfama. Close to the train station and the many fado restaurantes.
The communication with the hostess was very good, she was waiting for me, gave me some good ideas and, although I did not contacted them later, it was clear to me that they will be available if I needed them. They even had a transit card for me!
Important detail: the place was very clean. Very good shower with hot water. Amenities are basic but I spent very little time in the apartment, Lisboa is not huge but has a lot to do and see.