Ricardo and Estela are great hosts. They greeted me at the apartment in the evening. I had some issues with the flight to Lisbon and they were very understanding about this.
This is an amazing apartment - clean, very modern in a great location. It is located just a short walk from the local restaurants/bars/shops. A supermarket is just 2 mins away from the property. You can walk to central Lisbon in around 20 mins or take a public transport if you are in a hurry.
The apartment has everything you need - great WiFi, towels, kitchen equipment, hair dryer etc.
I would highly advise staying in this apartment. This is the best Airbnb I have stayed at to this date.