The flat is in a lovely part of town, just next to the markets, and plenty of cafes. There are so many great sites nearby, and there is plenty of pamphlets and information inside.
The flat itself is large, clean, and had everything I needed. The bed is really comfy! I'm 6'5", and the bed was more than big enough.
The place was amazing! If I ever come back to Porto I'd love to stay there again.