The apartment is located right next to the local train station, on the Gros side of San Sebastian. The trains are noisy when you have the doors open but otherwise we didn't find the noise a problem. The children loved sitting out on the balcony, watching the trains come and go, kept them entertained for ages. The apartment is walking distance from both Gros and the Old Town and there is a large supermarket right next to the apartment, right next to some cafes and playground. Perfect. We walked to both beaches really easily and ate out at the many restaurants / bars nearby. We left by train, which couldn't have been more convenient. Only thing to consider is how to get to San Sebastian if arriving by plane, and having tried to catch the bus I can say that you really should just catch a cab. Much easier, especially with kids. Great place!