We stayed in a spacious room with private bath and it had a comfortable bed. This is a great option for staying in Lisbon. Easy subway ride to the center, plenty of food stores and restaurants in the vicinity. Easy walk to and from Sete Rios station. For checking in, Tahir needed us to message him once we arrive outside the address. We do not have phone or data service (not really uncommon for being visitors from another country). He would not respond to agreeing to meet at a specified time either. If you find yourself in the same situation, walk a block to Olissippo Saldanha and connect to their free wifi.
But all that is really unnecessary because the building has a keypad to enter, and also the apartment. He gave us the code AFTER meeting with him. Most other places with this setup would give you the code and wifi pword as part of the check-in instructions.
Still, I would say here again. Sure, you can hear the neighbors arguing, but that can happen in other places you stay.