It was nice to stay at Lourenco's apartment in the vibrant Mouraria area of Lisbon. The apartment is very comfortable and I felt at home there during my 5-day stay in Lisbon.
The location in the Mouraria district (the former Moorish district of Lisbon) is excellent, and it was easy to use this place as a base from which to explore Lisbon. It was a good place to relax and rest after many busy days of seeing the city.
Many of the best sights of Lisbon are within walking distance, and I especially recommend visiting the nearby park, Jardim da Cerca da Graça, which is just 2-3 minutes of walking from the apartment and is a great place to relax. Other sights that are not to be missed are the many viewpoints or Miradouros in the area, especially the nearby Miradouro da Graça, the very high Miradouro da Senhora do Monte, the breathtaking Miradouro das Portas do Sol (my favorite), and the Miradouro de Santa Luzia. All are within walking distance from the apartment.
If you want to get a good sense of Lisbon in a short amount of time it's highly recommended to take tramline 28E from nearby Martim Moniz Square, to the end of the line and back.
I would happily stay here again if I'm ever back in Lisbon! Lourenco was always available when I needed him as well.