The flat is in great central location. There is 71 stairs to climb, which is difficult with a suitcase. But then Lisbon was built on hills...
The flat is very small. The first thing you notice when entering this place it terrible smell from the sewerage. Unfortunately there is no ventilation and when the windows are closed the smell is pretty bad.
The other problem is the noise coming from the flat above and the flat next door. Those flats are also rented and there are parties all the time.
For 4 nights we could not sleep because there was a party upstairs and noisy neighbours next door. This flat should more soundproof but the owners did not do it. So if you're a party animal - go for it. If you're looking for a place to rest AVOID IT.