Catarina & Alexandra's home is quite warm and comfortable, and is in perfect location of Porto, where is near to all the destination you wanna go but in a quite quiet and safe lane. As for house, although Catarina said it's century's old, you cannot feel except for the doors because it's so well facilitated and quite clean and tidy. Everything is in good condition.
When I arrived, Catarina gave me a lot of useful tips for authentic food, porto wines and museums/galleries as well as the commuting to Lisbon . I'm planning to visit Porto again for the winery and of course will live in Catarina's home again.
Highly recommended!!