My wife and I spent 5 nights at Maria's apartment and both it and she were wonderful. She met us at the building and, even though we have been to San Sebastián before, was very helpful and hospitable giving us suggestions and recommendations, including great day trips to Hondarribia and Bayonne, FR.
The apartment was very comfortable and had many nice amenities, including a very comfortable king sized bed.
Maria could not have been nicer and checked in with us a couple times to make sure we were having a good time. Would definitely stay with her again and recommend her apartment friends.