We spent a month in Artur & Diogo's space and it was just great. Super location within the city. The city has many, many hills, and this apartment is only up a small hill and then is open to the flattest part of Lisbon. The location is also very central, so getting anywhere is easy via metro or Uber. Diogo's was very attentive and helpful. If I was going to Lisbon again, I would stay here again.