The studio is in the most charming neighbourhood Mouraria. With very narrow alleys and stairs (not perfect for heavy luggage) but light-flooded because above the roofs of the other houses. The studio is well lived in and you can see that it is someone's home, even just for a few month of the year. Location wise it's perfect, close to the metro with good access to the airport and the mercado da Ribeira (Great place for food and grocery shopping) but also just a short walk away from all the major sights. Here's a tip: go for a sundowner on the rooftop bar of the hotel Mundial.
You can't chose a better situated spot in Lisbon.