I stayed a little over at Barrio Aurora and it was amazing! Maria, a mother of the host, met me upon check-in which was very helpful because this house is hidden from the main avenue and I would have been lost without her.
Maria was super helpful giving me suggestions of places to go, she even helped me figure out my return trip to the airport.
The place is super clean, the location is amazing in two ways. It's less than 10 minutes walk from Casa da Musica metro station (with 4 metro lines) and numerous bus stops even closer, plus lots of nice places to eat/drink. Yet, as the place is not facing the main avenue it is incredibly quiet and almost feels you're not in central Porto (in a good way).
I'd highly recommend this place, and would love to stay again too!