We just came back from a 5 night stay at this apartment, and it was a wonderful experience! We are a couple from the US with an almost-3-year-old daughter, and we stayed here with our friends from Finland. We were worried because there were no reviews on this property, but it turns out that's because it seems to have been very recently renovated and we were among the first to stay here.
From the first communications, Jose and his wife Izaskun were very responsive and helpful in answering all of our questions, and they continued to help us with anything we needed throughout our stay. They showed us to the free parking area, walked us around the apartment, and even helped us by booking our cab to the airport at the end of our trip. This was especially nice because we don't speak Spanish, and we mainly communicated using Google Translate.
The apartment was very clean and very new. It lacked a few things like salt and pepper, etc for cooking, but the supermarket was two doors away. The beach is right across the street, and it was perfectly situated between old town and the amusement park/scenic area on the other end of town. The balcony was huge with an amazing view of La Concha beach, which is especially lovely at sunset. The beds were comfortable, and we felt very much at home.
We all fell in love with San Sebastián, and we hope to return soon. Between gorgeous beaches, long family-friendly bike paths, playgrounds, carousels, and pintxos bars, we had an amazing vacation. Gracias para todos! Adios :)