Anabela's place is a great option to stay in Porto, both both international and national travellers (like me):
The place is really comfortable, beautifully decorated and the service is attentive and friendly, responding to all your questions and providing support for what you may ask for.
Location is not supercentral, which can be an advantage as it's a very quiet residential area, well served by subway so you can actually have some good rest away from the turistic & night life areas
given all this, I would also add that the value for money is great, so I fully recommend Faria House for a visit to Porto