The apartment is great! It's rather small but perfectly comfy for two persons. Well furnished and very clean. The location of the building is the best: it's in the bairro alto area which is very lively and near the baixa chiado subway station. You can walk to the Rua Augusta famous for the shopping and then to the sea. There are lots of restaurants and shops around.
Silvia was very nice and helpful as she called a taxi for us when we leaved at 5 am to get to the airport. Highly recommend this place.