Our experience described with 7 letters is: Amazing
Marta suggested to wait us at the metro station and provided guidelines how to reach the destination. She welcomed us with bottle of portwine and provided maps and information about things to see and things to do in Porto. She even provided mobile wi-fi router so we can have internet while being outside. When we asked for iron, she immediately provided one and also left a ticket for the metro.
We also had coffee, tea and the kitchen has been equipped with necessary staff.
The flat itself was very clean, the sheets have been ironed and smelled wonderful. It was very convenient to sleep in both bedroom and living room.
I will definitely recommend this place to my friends!