Thanks a lot to Maria, Garbriela & Tiago. Casa da Paz is a great place to stay. As its own name says it's really a peacefull place. We've had a great and relaxing days there. The house is wonderfull and it's near to the city centre so you can easily get there by walking. The restaurant recomendations you guys left are just great!! And of course the Porto wine you offered to us ;-)
We've really enjoyed it a lot! Thanks a lot!!