Apartament is totally cosy, I felt inside like at home. It was clean, and everything was like in the description or even better. Inside amazing view from windows on the city. The localization is amazing, it's a few meters below the cathedral and 3 minutes walking to Sao Bento, center of Porto.
There is only one issue, that is not the host's fault, but in the area where apartment is situated there is lot of dealers and groups of druggies, so it may be not so comfortable if you walk alone.