We stayed in this flat for 5 nights.
The apartment is big (4 double bedrooms + 2 Bathrooms) and it's located on 4th floor of an apartment building. In the flat there is everything you need. All rooms were cleaned.
The apartment is less then 5 minutes far away from the beach. By walking you can arrive to old town in circa 20 minutes.
It was a pleasure to be guests of Iñigo. He was a perfect host. The apartment corresponds to description on the Web, and he gave us important tips regarding San Sebastian.
I can warmly recommend him to everyone.