Not only is the apartment clean and beautiful in the center of Bilbao, but Maria is a wonderful host who goes above and beyond for her guests. My mother broke her femur and wrist while travelling and was in the Hospital de Basurto nearby the apartment. My brother and I flew to Bilbao to help her (and help translate for her as she doesn't speak Spanish) and stayed in this Apartment.
Maria was incredible kind and made the entire trip much easier. When my brother first arrived she was there to let him into the apartment and then even took him over to the hospital and helped to translate between the doctors and nurses and my mother.
She went above and beyond, was always willing to help and checked in frequently to make sure we didn't need anything else. She was a guardian angel for my family and the apartment was fantastic, very nicely located, and I can only say nice things about Maria and her property.
If you are coming to Bilbao for any reason you should probably stay here!