We were a family of 4 and had a great stay.
Communication was really prompt and the check in process was unique. The hosts waited for us outside the house and reserved us the best parking slot.
The apartment is located in a small town, which is very accessible from San Sebastian. There is parking available on the street, although at busy times this may take a few minutes to find.
The apartment itself is very nice and clean, and was very spacious for four people. The listing is accurate.
The hosts are extremely helpful and went out of their way to make us feel welcome. I would stay here again.