We were greeted by Teresa's friend Maria who was very helpful.
The apartment's location is great - very close to Rossio metro and 5 min walking from Lisbon downtown, bars, restaurants etc. At the end of the street on top of the hill there is a big parking place which is a huge benefit in packed Lisbon!)
The only thing that could be better is the wifi connection in the flat.
All in all - thanks a lot Teresa and Maria!