Long story short: This is the best host ever with a perfect apartment in a very convenient location. Go for it and you won't regret.
For those looking for detail: The apartment is in a nice little town, charming with its old town and bars. But the best thing is the location between San Sebastian and the French border. Bus stop is just down the street, the bus to San sebastian passes every 5 min and with a 15 min ride you are right in the center. St Jean de Luz or Biarritz is practical by train. Hondarribia, another charming town is 15 min by car. It' s just a perfect base for exploring the region.
The apartment is spotlessly clean and spacious. One double room and one twin room looks over a pedestrian road by the river. Beds are extra comfortable. Puzzles and books for kids... You have a lift and a ramp at the entrance so it's easy with luggage. Free parking closeby.
But overall you have a perfect host who is always there for every question you have. Best tips and suggestions... Answers within minutes... As if we had our private tour guide with us all the time.
I should also add that it was the most generous host as well since we had everthing from coffee to tea, milk to cupcakes in the kitchen. Even treats for children... Very thoughtful of her and it made life much easier.
I would definetely stay in the same apartment if I ever visit this beatiful region again.