The apartment is great located in a nice neighborhood full of Cafés and Restaurants. Evanice and her husband are very kind and helpful and make sure that you feel comfortable during your stay. The City Center is easily reachable since the metro Station is 5 minutes away on foot. If you arrive by car, there are a lot of parking lots nearby and on saturday and sundays it is even for free. I stayed here for one night and had the best sleep, the bed is very comfortable with a cosy blanket (I didn't freeze at all, although it is winter) and the apartment is very tidy.
Thank you very much Evanice, next time in Lisbon I would gladly return! :)