This apartment is very well-located, convenient for the Old Town, the New Town and the beach. It is modern, clean, comfortable, safe and quiet. FeelFree, the managers, are very responsive, usually answering any questions you might have within a couple of hours, which was much appreciated as strangers to the city. We were there when it was very hot. The apartment does not have air-conditioning, something very common in the Basque country owing to historic climate patterns, and so the fans provided were very welcome, if a little inadequate during the hot nights.
It was the first time that we had encountered the Danalock automatic door-entry system and so we struggled with it for about 15 minutes prior to entry. In fairness, FeelFree do offer the chance to call them to automatically open the door from their office, but we did not wish to trouble them as we wished to overcome this ourselves. However, we did not find it easy to do. Bring back old-fashioned keys!
Additionally, there was something wrong in the apartment, but they responded quickly, put wheels in motion to overcome the issue after our departure, and gave us an acceptable discount without quibble.
I would recommend this apartment and FeelFree.