We (me and my husband) stayed for a week in Marco's small but lovely apartment. It's in the wonderful Alfama district with a beautiful view, as described. The apartment is great for up to 2 people, but with luggage, it would be too cramped for more. Marco is an excellent host, very communicative and reliable. He even stopped by on his way through to take care of some business. Also, although my phone didn't have service when we arrived, he sent someone opening the apartment for us with perfect timing, just with the flight info I had given. Note that you need to be able to manage stairs to get to the apartment, as it's on a pedestrian street and Lisbon is hilly. If that's no problem, I highly recommend his apartment when staying in Lisbon!