Oscars place was very handy for Bilbao - a 10-12 minute train ride away from Abando renfe station. The apartment was in a quiet residential area in Basauri (which as a town is a mix of residential and industrial). The apartment was super clean and Oscar and Jorge were very accommodating of our early arrival and able to check us in so we could explore the area. We used the metro, buses and Renfe for 5 days and travelled out to the coast and did not spend more than €15 on a barik card which we would recommend.
Thanks Oscar - you are a great airbnb host