Excellent location. Fits 7pax comfortably. 4bd, 3ba. House was clean. We encountered a bit of a challenge opening the apartment door, but not a big deal because we were able to figure it out. The kitchen is small and you will have to buy your groceries, but that is not a problem... because when in San Sebastian, you must plan to eat out! There is a bakery across the the street and the place is a short walking distance to a well stocked grocery store (Veritas).
Alexander is easy to communicate with and will provide timely response to your requested information. I recommend this place.