We had a great 10 day holiday in San Sebastian, and would recommend this apartment to any families looking to stay in San Sebastian/Donostia.

Marta's apartment was just as described, and a couple of minutes from Ondaretta beach. Another 15 minute walk along the sea front into the old town, or a 5 minute drive. We used the Zurriola beach (just past the old town) each day, so drove and parked there with no problems.

Enough bars/shops/restaurants near to the apartment should you wish to eat nearby.

We didn't meet Marta, but she provided information for us on the apartment, and San Sebastian, before and during our stay by email and SMS.