Dagmara's apartment is in the "casco antiguo" of Bilbao, close to the river and many points of interest. It's very difficult to park in the area, however not very far (15 mins walk) there are free parking zones. The room is adequate for two people, it's clean, the wi-fi is good. There is a small bathroom and kitchen we shared with Dagmara's family. Dagmara was a very kind host, the first time we met she gave us tips about what to see, where to have dinner, where to go out, etc.
When we returned to the apartment at night we had to cross the living room where kids were sleeping, which was awkward.