André's apartment on Picaria was absolutely fantastic, I could not recommend it more!
The place was extremely clean and tidy when I arrived. Dishes and utensils were very clean, he had comfortable and fresh towels, bedding was very clean, and the building itself is also quite tidy. The apartment itself is spacious, with comfortable furniture that looked exactly like the photos. Everything is fairly new (couches, refrigerator, table, etc.). André had wine ready for me when I arrived, and had guidebooks to use while in Porto. He had all details covered, down to a medical kit in the bathroom. I would say the only small drawback to note is that it is a third floor walk-up with no elevator.
The apartment is located in the center of the nightlife, restaurants, and sightseeing in Porto. I didn't use the transportation once because I was able to walk everywhere within 20min. Although it is on a main nightlife street, the bedroom has double paned (virtually soundproof) windows and a very efficient and quiet air conditioner.
Overall, a great apartment that made my stay really amazing! Highly recommended.