This is a small flat good for a few days' stay, but would not be a good choice if you plan on doing much cooking beyond breakfast. The location, very near Marques de Pombal, is practical if not especially lovely.
The owner met me at the apartment and very kindly allowed me to store luggage there until check-in time, which made things much easier.
The bedroom is a reasonable size and the bed is indeed very comfortable. The sitting/dining area is OK, but elsewhere the renovation has struggled to make things fit in the small space available. For example, it was clearly impossible to find anywhere to hang the toilet paper in the bathroom! And using the kitchen facilities is very difficult since the cupboards over the sink/hot plates are at chin height. The view is expansive if not really beautiful (modern buildings), but in the summer it is necessary to close all of the curtains to keep the sun out which makes it feel claustrophobic. All of the furnishings are clearly the absolute cheapest available.
The building is shabby, and on a busy, unattractive street. It is, however, about as centrally located in modern Lisbon as you could be.