Possibly the most gorgeous bathroom ever—marble and with a sunny view directly out over the Targus! Same for the balcony—make some tea and watch the lights twinkle across the water at night.
Hosts are super helpful, the Alfama neighbourhood is ancient and stuffed with delicious tiny restaurants, and once you figure out the tram (28E) and bus (737) it's very easy to retreat back up the hill at the end of a day like the original inhabitants of the Castelo.