We chose Federico's apartment because of its central location, access to public transportation and its location on relatively flat ground in this notoriously hilly city. The apartment is in a recently constructed building, and is clean and modern, with excellent wifi. The floor-to-ceiling windows overlook Plaça Martim Muniz, which provided us with the nonstop theatre of Lisbon life. The windows let in light, but not sound. Federico and Sergio were available to answer questions and provide any help we asked for. One thing to be aware of is that there is no direct access to the building from Rua da Palma, the main street directly in front of the building. There are staircases on either side of building leading to entrances halfway up the hill. This wasn't a problem for us on a day-to-day basis, but the Rua Arco da Graça entrance is preferable when you've got luggage.