Catarina's flat is perfectly located close to many of the main attractions in Lisbon. Most things are walking distance. If you need to take the train (for example to Sintra), metro, or bus/tram, the stations are nearby. The area is quiet but very close to a lot of restaurants, bars, and convenience stores. The flat itself is small as shown in the photos, but perfect for a short stay for a solo traveller or a couple. My flight into Lisbon was super delayed, and Catarina was kind enough to allow a late check in. I appreciated her detailed instructions on how to get to the flat. Note that there are some stairs leading up to the building and also the flat itself, which may not be ideal for someone with mobility issues.