If I could give 6 stars, I would. An exceptional AirBnB experience. Alberto and Guadalupe were very hospitable, communicative, and warmly welcoming. Their apartment is lovely, very well kept and clean, and you will find everything you need there. They provided lots of helpful information on Bilbao and local happenings, and suggestions. The apartment is perfectly located, secure, and comfortable. I can't recommend more highly for a stay in Bilbao's Casco Viejo. Mil gracias to them both.