Irati is a very kind woman. Her flat is conveniently located in Portugalete.
The metro station is only 1 minute walk and you can find bar/cafe to eat tapas all around the flat. The car park (which is not free, it's not mentionned in the offer) is very near the flat too and Irati gives a good rate for it compared to the normal rate. Moreover it's on a secured platform to which you can access only with a pass so it's very safe. However, we couldn't managed to access to the car park on our own the last day because the key that opens the door leading to the private car park didn't work. Lucky some other people were here with a working key.
We recommend to stay in this flat as it has everything you need and it's spacious and clean. On the other hand, Portugalete is not really interesting and although the flat is located in the street where you are supposed to get the best tapas in town, none of the ones we tried were good. There are better places for that in Bilbao