I really enjoyed my time in Porto and in Danielas Apartment.
Daniela was really responsive and helpful. Arrived late at night, checkin was easy. The apartment itself is not too big but totally fine for one or two people. The location is central, restaurants, bars, metro stations, pharmacies, supermarket - everything you need is in walking distance. The room was clean, the kitchen well equipped. As some people mentioned before, there is a bar in the same house so I would recommend bringing some orapax.