Oscar is a very friendly and flexible person. We were glad that he could pick us up at our arrival at the airport and take us to the house which took us 30-40 min . He was also able to arrange 2 cots for the kids and made sure that everything was fine by us.
The house is exactly as shown on the pictures and as described on the website. We were 6 adults and 2 small kids (8 months and 21 months) and it was perfect size wise.
The house is part of a relatively recent residential neighborhood with limited amenities within walking distance. There is a kind of poorly maintained commercial area located 15 min walk away, which includes cafés, grocery with bread, fruits and veggies, a butcher, hairdresser. Alternatively, you will find 2 supermarkets on the way to the beach.
Given the nature of the area, a lot of property owners have dogs which can be quite irritating when they start barking all together, especially at night.
The nearest sandy beach is 5-10 min away by car. In my view it is one the most beautiful and quietest beach of the Lisbon area. The village will probably take you 50 years back! If you get up early, you can catch the fishermen on their way back from fishing and buy the fresher fish for a very cheap price. Although the surf can be a little changeable, depending on the position of the sand banks and the wind strength, there is usually several pics on offer when it is too big at Costa da Caparica (low to mid tide is generally better).
Local people are very friendly and will always be available to help if you behave with respect.
I would certainly recommend Oscar's house for a relaxing holiday with friends and/or your family with small kids and enjoy the pool, garden, barbecue area, beach and water sports.