We stayed here from the 13th-18th of July. We had a great time and enjoyed the beach, surrounding cities like San Sebastián and Bilbao, the great view and Zarautz of course. Amaia was there to welcome us and gave us suggestions for local restaurant, places to visit etc., she was very nice and welcoming. The apartment is nice and light, has two bedrooms and a combined kitchen and living room (plus it has both washing machine and dishwasher) and of course an awesome balcony with an amazing view over the bay.
We had our own car, but took the train to San Sebastián one night, which worked out great and only cost € 2,55 for a one way ticket. The train stops running early though, so we had to get a taxi back which was 44 €, but also a fair price. Zarautz is a pretty lively town with many restaurants, pinxto bars etc. and the beach is way less crowded than San Sebastián, but just as good! We fully recommend staying here!