l can't recommend Inaki's place enough. For us the location was perfect. 2 mins walk to the Ribera market for breakfast every day and it's s really quiet street in Casco Viejo but you're only two streets away from places that are livelier til late.
You can walk everywhere, if your up for that and we didn't use any transport at all in three days. If you're less up for that the tram passes right by the end of the street.
Bilbao is a fantastic city and this is a great place to stay in it. We were really comfortable here as a couple but if there were more of you you could be a bit less so in terms of seating. The apartment is stylish and will equipped. The bed is really comfortable and the shower is fab.
Finally Inaki and his husband are absolutely charming, gave us a warm welcome in person and I'm sure nothing would be too much trouble for them, should you need anything.