Room was small but clean, bed was comfortable, Mario was nice and speaks good English.
Apartment is centrally located , ten minutes walk to restaurants and the Guggenheim, and five minutes walk from the airport to city bus stop.
Only issue may be that his apartment is on the third floor and no lift, so if you are not strong or have large bags, better ask if Mario is prepared to help carry them up or down the stairs.
His apartment is the only one with a light coloured wooden door...
All up, does the job, and Mario gave me a great recommendation of a Pintxos bar for dinner, so all good - El Globo - barelglobo.es