The apartment is very specious and in a great location. 2 minutes walk to the old city (pintxos, pintxos, pintxos!) but still quiet and comfy.
It was missing a kettle and the kitchen seemed a bit dated, however these were small details and our group of 6 people had a great time in the apartment. 2 additional people could sleep on the sofa, but I think the place would feel too crammed.