We had a great stay in Porto, the neighbourhood is great (subway, groceries, shops, restaurants, cafés, etc...) and very lively. We walked in about 15 to Santa Catarina street.
The appartment is getting a bit old, but very comfortable, with all the necessary equipment available. Susana is a great host, attentive to our well being and it is very easy to communicate with her.
Thanks for everything Susana!