Such a wonderful stay! Located at the centre of Lisbon it is only a short walk to all stores and places to eat (which Lisbon offers plenty of!) On the terrace you'll have a great view over the city. Communication with Ruth and Mario is very smoothly. You can ask them anything and they'll respond in a heartbeat.
It is quite noisy though, so if the upstairs neighbours are home you can hear almost every move they make. Other than that no problems at all!