We spent 3 nights (4 adults) in the apartment comfortably.
Pedro is super responsive to all questions. The apartment is exactly as pictured and good for a short stay in Porto. It is about a 20 min walk to the downtown attractions and a 7 min walk to the river.
Our only “negative” comment is that none of the walls seem to be insulated - even if you’re in the bedroom with the door closed, you can hear everyone’s movement inside the apartment and noises from the neighbors. Not a huge deal, but just an FYI if you’re sensitive to that type of thing.