Possibly the best stay I ever did with Airbnb. From the moment he opened the door until the last minute of my stay, Adam was smiling and always offering a hand.
The room is big, plenty of room to put your stuff and the balcony brings some air if you want. You can easily access the kitchen (with free coffee and tea offered by Adam!) and the bathroom.
The flat is very well located, you get to the points of interests by foot very fast and you also have access to the traditional restaurants that serves Porto's specialties (francesinha and bifanas) almost next door.
Host, room, location and price are top-notch! And Nene the cat will make you feel at home instantly :)
Highly recommended!