This place is so perfectly located we did a lot of our visits by foot. Buses and trains/metro are close if you don't want to walk that much.
We also took a ferry to the Almada-side of town. We had a great stay, would recommend it, we didnt have to use the heater, so i'm not sure how it is when its really cold.
When we had questions, Nino made sure to answer really quickly.
All in all, a lovely week!