We were traveling as a family with two little kids (1 & 3) and we spend some days in Paula, Raquel & Martha's place to explore Porto.
The apartment is spacious with two bedrooms and a master bathroom on the lower floor and living-room, kitchen, guest bathroom and rooftop terrace on the upper floor. Sitting on the terrace at night, enjoying the view and a glass of wine was most definitely the highlight of this apartment!
You're in walking distance to Port's main attractions and the train station Sao Bento is very near as well. You couldn't find a better location for a city trip.
We were welcomed very warmly and everything went smoothly.
The only minus: The master bathroom is a tad moldy and since it's right next to the big bedroom, it's a little smelly. I've smelled worse, though, and we would stay here again. Thanks!