I just can confirm all the other nice comments. They have done everything to make us feel like home. The apartment is in a perfect location, there is a nice view to the Beach Ondarretra and Igueldo hills. Also the house is very nice and cozy. Also they have a parking spot (very important in San Sebastián) They made us an delicious breakfast every morning
I hated to leave. This AirBnB has been the greatest experience. I will most definitely stay here on our next trip.