It was really pleasant to be a guest of Ana, in all my life of traveller, I met only one apartment of the same level of quality (the previous was in Lagos).
First, Ana is a great host, she is kindly and conversable, she welcomed us warmly, made a tour of the apartment and gave us all needed recommendation regarding Lisbon (which we found quite useful).
Second, the apartment is very cozy and authentic, for a couple of days we felt like genuine Portuguese citizens, with all these "ola!"s and smalltalks with neighbors (all of them are nice and friendly people). I really recommend such kind of experience to everybody.
Third, the apartment was fully equipped. Sometimes in some apartments you experience lack of this and that, but not in Ana's place.
To conclude, I definitely recommend Ana's apartment to everybody who wants to dive into calm and authentic (but no quiet enough because the airport is too close to Lisbon) life. It was really enjoying days, thanks to Ana.