We enjoyed our stay, the apartment was great, clean and we had everything we needed. We loved the backyard, and enjoyed our morning coffee's and evening hangouts there.
Our hosts were great and they gave us great information about Portugal. Also, there are cleaning ladies who cleaned our apartment and changed sheets, towels... almost every day. There is metro station near the apartment, and you can get to the main square by foot (20 min).
At the end I must say that this was great apartment, we had wonderful stay, and would recommend everyone to stay here when you are in Lisbon