We had a wonderful time in Ana's apartment.
The location is very convenient with lots of restaurants in the immediate vicinity, plenty of sightseeing opportunities within walking distance, and metro and train stations (Rossio) close by.
We were travelling with 2 children (6 and 9), so we were a bit worried about late night noise, but this was never a problem as the apartment's windows are well isolated.
Definitely worth a recommendation for future visitors.