Wonderfully located apartment. The airport shuttlebus stops right in front of the door. There's a nice park right behind the apartment and all the major sights are within walking distance.
The apartment itself is nice, with 6 bedrooms with double beds, 3 bathrooms, a small kitchen and living room.
The communication with Irantzu was great. She responded quickly and was very accommodating with regards to our time of arrival and departure.
Would definitely recommend this apartment as it is a great spot from which to explore Bilbao.