First of all Garbiñe is a super friendly and helpful host. It was a pleasure to deal with her.
In this huge apartment with two separate bedrooms there is virtually everything on board to make your stay homely. The place is in walking distance to the harbour called Pasajes (Pasaie) with supermarkets, groceries, bars and restaurants. You will, in the opposite direction, need to take the bus to commute to the city proper. In our case it was handy to use the so-called Mugi card.
The apartment faces a main road, however by closing the windows you are able to keep the noise under control. Let me doubt the air quality in daytime, but at night it should be okay.
Glad to return.