Flat is perfectly located in a quiet street just close to Zurriola beach and walking distance to city center and Concha Beach. There is a supermarket just next door, bar, bakeries and everything you need.
However the flat is quite small and with not a lot of light (all windows face to internal gardens). We asked for two cots since we have two small children but it was a challenge to fit them into the apartment since all the rooms are quite full of furniture so we ended up with the cots in the living room.
Apartment was also not clean well. There was a lot of sand everywhere and if you accidentally drop something under the bed and try to pick it up you will see it completely covered by dust... Overall overpriced for the service provided.