Osvaldo Manso
Google
The location is great, surrounded by the mountains. The room was a bit old-fashioned, but not bad. Breakfast isn't a buffet, but you can order what you want and they don't charge you anything extra.
But the best thing about this hotel is the owner/receptionist, Manolo, who really knows how to make you feel welcome. He suggested many interesting places to visit, both in the Picos de Europa and on the route to Santander.