We had a great stay at Joana's flat. It's really well situated and you can walk to most of the touristic places. It is also really close to the main train station where you can find buses and metro. It is well equipped and clean. Joana and her friend, Nuno, welcome us and were always quick to answer to our messages. Nuno also gave us the best advice for fish restaurants (thank you!). The only issue we had was that it was really cold in the flat (there is no isolation). Fortunately there are several portable heaters that helped us at night.