We highly recommend Nerea's place. It was super clean. We are a family of four and there was lots of room for all of us. The bathrooms are big and bright and welcoming. The beds are all very comfortable. The washer and dryer are brand new Miele and are a fabulous resource to have in the apartment. The fridge and dishwasher are great too. Zurriola beach is literally around the corner, there is a great cafe just below (Vamos Cafe), and lots of great bodegas and butchers just a block or two away. It was also enjoyable to be able to easily walk to old town and centro. We would definitely stay here again on a future trip.