Carmen is very nice and was a great Airbnb. She was very flexible about arrival and leaving time. She gave my friend and I independence but was also helpful and prepared coffee and breakfast for us each morning. She lives next to a beautiful park, is a 5 minute walk from the old neighborhood Casco Viejo and only a 20 minute beautiful walk to the Guggenheim. I recommend staying with Carmen when you are in Bilbao.
Thank you, Carmen!