The host was waiting for us in the flat before we arrived. She kindly showed us in and explained the basics.
The apartment is as beautiful as in the pictures. Very centric location, walking distance to the main touristic places to visit in Porto. The neighbourhood is a bit rough, though. There was music and questionable people yelling on the street in the evening, but not until very late. It did not stop me from having a nice night sleep.
The sofa-bed was very comfy and incredibly easy to put up and down.
All sheets and towels provided of a good fabric quality. The Pantene shampoo and Dove shower gel were a pleasant surprise to find in the bathroom. Same with the hair dryer: live saver.
Rooms are spacious but the flat feels cozy and warm.
The Porto guides were also very helpful.
However, I missed having a mirror on the small toilet. It would have made things easier in the morning for three people to get ready.
In conclusion, totally recommendable, great experience and quality for an excellent price. I would come back.