Arrival: It was notified few days before going to the apartment that we should go to pick up the key in the center of Porto, none near Matosinhos, don't consider that when you arrive Porto you go straight to the apartment. The elevator wast not working. They did not notify the number of the flat so when finally arrived we really did not know which flat it was, and we were searching floor by floor (its the 3rd floor FYI).
Conditions: not super clean, but acceptable. The blinder of the main room was broken and 1 min after being in the apartment collapsed and fell down. Every contact with he agency was done online and I was asked to talk by phone with someone, and they never did. They took 1 day to send the technicians. With a few investment on details, they could improve the conditions.
Privacy: We were interrupted without previous notification: First with he 2 tecnicians that we knew they were coming but they never knock the door.
Second time someone form the Agency Apartment appeared (by suprprise) into the apparent to check the blinder. So we were sleeping.
The location is good near supermarket and restaurant area.