Sofia's friend Bruno let us into the apartment and gave us our first taste of Pastel de Natas which we continued to have for breakfast for the rest of our trip. Although we never met Sofia she kept in contact with us via email and even gave us a recommendation for a great taps place nearby called Taberna Portuguesa.
Location: The apartment is located right in the heart of everything. Pretty easy to find. You're a 10-15 min walk to the metro and other neighborhoods. There are also tons of restaurants and bars nearby.
Apartment: it's just as it was pictured, very cute and clean.
I would definitely come back again!