I enjoyed my stay in house 6. Fernando was very kind and always available, especially when I had problems with the internet connection (as I was working from home), he came up with a great solution. The house is nicely situated in Foz do Douro and very close to the beach (2 minute walk). There are good shops in walking distance (bakery, grocery shop, organic food shop, etc.). The house was cleaned once a week (fresh linen and towels as well) and the cleaning people were extremely friendly and so nice. All in all I can definitely recommend staying in one the houses.