Sonia's apartment has lots of Old World charm, and the location is fantastic for exploring Bilbao. It's very centrally located, only a couple of blocks from the bus to/from the airport, and in walking distance to all the major attractions of Bilbao. Despite the fact that I don't speak Spanish, we managed to communicate well. Sonia was very warm, friendly and welcoming. She provided me with a map and tips on what to see upon arrival and also gave me helpful advice on transport. Highly recommended for a single traveler.