We stayed in Olgas' appartment for four nights in March 2019 and can warmly recommend this place. Olga is a great host. She welcomed us at the flat personally (we took the metro but Olga also offers a transfer from the airport), gave recommendations and was very helpful (she provided us a little bed four our babyboy). Communication with Olga is easy and fast. The appartment has a perfect size, is nice furnitured, bright, has a nice balkony (even though less usable in March) and offers great views on the streets in a nice neighbourhood. The appartment is located in a more modern part of Lisbon but not far from the city center. We enjoyed the neighbourhood a lot because it is very urban, offers a lot of little cafés, shops, and restaurants and is less touristic. Nearby is a nice park around the Gulbenkian museum of modern art. 5 stars for this great place!