Wonderful location, excellent hospitality, and very spacious apartment! It’s in the quieter part of San Sebastián, yet still near everything. Marco and Pepi were very accommodating, any hiccups that occurred were rectified immediately. As a first time user of Airbnb, Marco and Pepi define what customer service should be, and I would definitely book with them again in the future!
As a side note, I’m happy I listened to the other reviews in terms of parking; the parking garage is a bit tight, but that seemed to be a reoccurring trend for Spain wherever we went! If you plan to drive a lot my recommendation is to get a smaller vehicle if possible. We rented an Opel Astra and did just fine.