I had a great stay for 4 nights at Pedro's apartment. He was welcoming and easy to communicate with, as well as respectful of guest privacy. The place is just off Zurriola beach in the Gros neighbourhood which I liked as I enjoy walking, it is about 15 min walk from the old town. It's reasonably clean, there is a slight smell of smoke in the common area but none in the guest's bedroom. Would recommend Pedro's place for solo travellers or couples visiting San Sebastián!