Natalia was an ideal host -- communicative, helpful and warm.
Her apartment is situated a 15-minute walk from the city center, which means it is a little quieter and less touristy than the places in Chiado or Bairro Alto. You live right above a cafe run by a very sweet couple, and around the corner from a transit hub.
The apartment itself is airy, has a nice balcony and a washing machine (which I very much needed).