The location is great – one metro stop away from the airport and within walking distance/public transportation if necessary (which was my case as the metro shut down on the day I needed to fly out).
The only thing to note is that there are some stairs that you have to go up to enter the house, so if you have lots of luggage that might be an issue. I had a large suitcase, a duffel bag and a backpack but was able to make it up, and Isabel, Antonio's co-worker, was so helpful and kind as she received me and helped me with my luggage.
Lots of restaurants nearby. Easy to travel to and from Lisbon via metro. There was hardly any noise in the house and neighborhood. Everything was clean. It was perfect for a two-night stay between flights. I'd stay here again! Highly recommend.