Luis is a nice guy who will go out of his way to make your stay in Porto excellent. He provides lots of recommendations, a clean room and bathroom with a comfortable bed. The breakfast is tasty, we really appreciated it.
The location of the apartment is a bit out of the way, you would need to take a bus then metro to reach the center. This works well, just make sure to look at the times of arrival departure.
There is a cigarette smell present in the house but not in the room you will be staying. Overall great stay with a nice host!