The apartment was as described and offered much light and space for the two of us.
It is well situated near Praca Figueira and as Rui describes on walking distance to the neighbourhoods like Baixa, Alfama etc.
Rui offered some advice via a useful Google Maps. Furthermore near the apartment there are plenty of places for breakfast and dinner as well as for delicatessen Mercado da Figueira. Bear in mind it is on the third floor with only stairs and no elevator but this is compensated by the location ;-)