Horrible, just horrible. From the complete idiot the owner has employed for the check-in ( which, btw is not a check-in - you go to their ramshackle office and then left on your own on the mainly one-wat streets of Porto. In rush hour. There is no "parking on the premises". There is no parking, full stop. Get to the flat, met with seriously strong chemical fumes with a nice undertone of fxxxxed drains. And it's filthy. My friend had to stay in a hotel, the fumes made him ill. I stayed, close to an open door. Best of all, now neither the owner or his "check-in" person are answeing any type of communication. Stay away.