This has gotta be the best AirBnB in Donostia/San Sebastián, and therefore maybe the world. The location is simply unreal, and the apartment is super nice and cozy. The most happening feast of delights and boutique shopping in Europe is literally on your doorstep, but also through some architectural wizardry the apartment itself is nice and quiet. The hosts are accommodating and helpful.
My only caveat is that the wi-fi was in-and-out during our stay, so if you have some mission-critical need for connectivity, then… honestly I still think you should stay here, but maybe figure out another arrangement for your Internet fix. This stay was a real highlight in our trip all over Spain.