This is a perfect spot to stay in Porto. It is not a typical stay with locals as they don't actually live in the apartment. But they really care about your experience of Porto and are very attentive nonetheless.
My first night, they picked me up and stayed up late with me scribbling over a map all their recommendations, tailored to my interests in art and architecture, even thinking of good restaurants for me as I am coeliac. Their advice was so valuable. I had a really wonderful time in Porto because of their input.