We had some great days in Lisbon and the apartment (House of Maps) was even better than we had expected! We can only recommend it to anybody who is willing to climb up to the fifth floor to enjoy it (including the two balconies and the spectactular view), it's worth the effort and its location is ideal, very central, close to the metro Rossio and to nice cafés and places to eat.
Pedro was very helpful and attentive and we would come back any time.