This place is in the perfect location! It is close to the bustling town and near all the action but without the noise. The house is so spacious and clean and we really needed the space because we were a big group with 3 young children. Our host was waiting outside for us and he was so lovely and helpful.
My only recommendation would be that the apartment has some maps and tips on where to go in Lisbon. We felt overwhelmed as we didn't know where to purchase tickets from for the trams and buses and we wasted a lot of time trying to find an information centre and locate maps. Also, because you are dealing with an agency, the service is not personal. Every time you need to ask something you will need to talk with a different person.