I was in Bilbao for work and I booked Aitor’s house for two weeks. The flat is very nice and the room really comfortable!
Aitor is a very nice host, and he’s super helpful if you need something during the stay. The flat is in the center of Bilbao near to all the principal attractions of the city. It is 10 minutes from the station if you need to take a bus and 3 minutes from the metro. In 15 minutes you can reach casco viejo.
I really enjoy my stay and I recommend it!