Clean. Quiet. Great location. Just walk around the corner up the alley and you're in the old city. (left side of building when facing the front). Easy access by car. There's an underground parking garage about 800 feet from the apartment (Campo das Cebolas). 1.5 euro per hour. The garage entrance is strange. You have to drive west to the end of the road the apartment is on; at that point there is a red no entry sign for a 1 way road and it appears you have to turn left. You actually drive straight for 20 feet on this 1 way road to enter the garage on the left. The sign says you're allowed to enter the garage. I rented a car for 2 days for day trips to Fatima, Nazare, Obidos, ... The garage worked great for overnight secure parking. There is also free street parking after 7 pm and before 9 am if you are lucky enough to find it. As other people have noted, 4th floor, up steep stairs. Travel light. Artur, who met us at check-in helped. And, the bathroom is part of the bedroom, separated by a curtain that you can pull to close, so the set up is really only okay for a couple/family or very close friends.
If we go to Lisbon again, we'll definitely stay here.