Olaia is a great host! She is a very friendly and a warm person that helps you with every problem!
The busstation to the airport, shops, and the Guggenheim museum are close by. The appartement is very neat and there's a piano. :D
Bilbao is an amaizing (and clean) city with nice traditions like drinking beer and eating pintxos. I had a great stay in Bilbao and I'm sure you will have it too.

(Olaia, you are always welcome to come to Antwerp!)

Kind regards,
Nima