The apartment is nice and cozy. It's near Rossio's train station, where you can take the train to Sintra. Also Barrio Alto is really close, so you can enjoy a beer and the sightseeing.
Ricardo was quite friendly and was waiting for us at our arrival. The only issue we found was that there's a restaurant just below, so it can get really noisy sometimes but the bedroom is in the other side of the flat and, therefore, really peaceful.