Overall: The stay in San Sebastián and the flat were absolutely perfect.
About the flat:
We were as family (2 adults & and 2 small kids 2/5 years) for 8 nights.
The flat was a perfect size for us and for the kids. Everything we needed (i.e. baby travel cot) the flat had or we got it from Mikel.
It was totally clean and everything is new with very nice designed details.
Since yet it were our best stay with kids.
About the contact/responsible person Mikel:
Thanks to Mikel for helping us so much, giving a lot of recommendations and being always very helpful (even with the luggage).
About Donostia/San Sebastián:
How cool and beautiful is Donostia. Nothing more to add. We loved it and will definitely come again!
Thanks so much for making our vacations perfect.