We had a very comfortable stay at Dagmara's apartment. The room was more like a suite with a comfortable sleeping area and a sitting area. Good location, close to the medieval centre and restaurants.
About the host, Dagmara goes out of her way for the guests. She even gave us a transportation card for getting around Bilbao with details about attractions etc. Before arriving at Bilbao, she kept in touch as well and replied instantly. We had a wonderful stay.