Joao's place is a 5-star experience. The location and view are amazing - it's a perfect base for exploring the Greater Porto area. He and his wife were the most accommodating hosts I've experienced - starting with saving a parking place for us, walking us through the house and the area, answering any questions we have, stocking the fridge and filling a fruit bowl. The place was also fully stocked with all necessary cooking materials to fully take advantage of a sunset meal.
Overall, a top 5 worldwide Airbnb in my opinion. Thank you Joao and Anna!