My friend and I traveled to Paris, San Sebastian and Barcelona and stayed in various AirBnBs-. This one was our favorite. It Was very well located in the city- easy to walk to all the pinxto bars in historic downtown and various other places but at the same time being quiet and very comfortable. I am a light sleeper and when traveling in Europe and staying in cute, historic parts of town it is often difficult to find a place that doesn't echo with noise from the streets below. I got lucky with this one. The place was very very clean, very comfortable and to be honest more than just my friend and I needed. It would be a great place for a small family. The apartment also came with a small notebook of how to operate all the appliances etc. which can be very handy when you can't read Spanish or Basque.
Oh and one more thing – we had a small water leak from the radiator and a repair person was there with in one hour