I stayed in Filipa's and Maria's apartment for an entire month and enjoyed every moment! The apartment is small (ideal for one or two persons), in a quiet neighbourhood near Basilica da Estrela. It is recently refurbished, clean and decorated with care. Every week the cleaning lady comes by to clean the house. The kitchen is equipped with all you could possibly need including a Nespresso machine; there is a lovely balcony where you can have breakfast or drink a coffee. No washing machine is available but on a stone's throw away there is a place where you can wash your laundry for a few coins only. Within 15 minutes you 'll be able to walk to the centre but there are multiple bus lines (and famous streetcar nr. 28) nearby as well.
Maria was very helpful in every respect; she even showed me around in her car right on the first evening after arrival as where to eat and to do shopping and was always prompt to respond when I had any questions.
If I would visit Lisboa again there would be no single hesitation to go to their Airbnb again. Thank you, Maria and Filipa!