We very much enjoyed staying at Maria and Francisco's place. It is very cozy and charming with a great location close to the Alfama and major sites. Very close to public transportation such as trams and the metro. Francisco was very helpful and available at check-in. We had no issues with hot water. As other reviewers have mentioned at night it is a bit noisy due to the trams, however I think staying in the Baixa district I think most places will have similar issues.
Overall we were very satisfied with the place.