What an amazing time we have had !
Very nice apartment, spacious, comfortable and well-equipped, with an INCREDIBLE view on the Douro. We were 6 and it was a perfect fit. The couch was awesome (it had a real matress inside, which was very large and comfortable, more than enough for two persons, even though no pictures of it were provided). Be aware that you will have to pick up the keys to the apartment at the welcome centre, located in the city centre, and not directly at the apartment. However, the employees we talked to were lovely and very welcoming. The only drawback was that it was a little bit far from the centre (~30mn walk, but it is beautiful). Though, uber worked really great for us. It was fast (usually 4-5 mn wait, no more than 10), cheap (2-3€ per person to the centre) and eco-friendly (uber green). The neighbourhood was quiet and nice. with lots of restaurants around.
So, we strongly recommend this apartment :)
Thanks a lot for welcoming us !