We spent 3 days in San Sebastian and absolutely loved it. Maria's place is in a fantastic location, right in the beautiful old town. It is down a peaceful street which meant it was very quiet in the apartment. It is clean, bright and spacious - perfect for the two of us. And Maria herself is incredibly helpful. She is full of recommendations for restaurants and things to do and even helped us with a few bookings. She was very responsive to our messages before and during our stay - it almost felt like having our own tour guide!
I cannot recommend this place (and Maria) enough! When we come back to San Sebastian, we will stay here again, no doubt about it.