We had a wonderful stay at Carlos's place! The apartment was very clean, well stocked and in a good location for us. We like to walk, but the Old Town was no more than a 10 minute walk. The bus station was more like a 30 minute walk, but easy to do day trips from Bilbao. Carlos was very attentive and a great host! He provided a great write-up of what to do in and around Bilbao!