My mom and I passed through Lisbon on the way home to the States from an extended vacation and stayed at Nuno and Ana's place for two nights. We did an easy self check-in with Nuno's instructions and were pleased to find that the apartment was situated on one of the main walking streets in the neighborhood filled with shops and restaurants. A/C in the living room and one bedroom, as well as wifi and a guestbook with neighborhood recommendations, made our stay very comfortable. The apartment is on the 3rd floor of a steep flight of stairs, so I would not recommend it for those with mobility issues or who have trouble carrying heavy items upstairs; however, the location of the apartment is perfect for those wishing to take the train into the area from the airport or travelers wishing to visit Sintra, as both train stations are about a 5 minute walk away max. I would definitely stay here when passing through Lisbon again.