The apartment was even more spacious than thought and well laid out. There were two self contained sleeping areas with a private bathroom each, another separate toilet and a spacious separate living room and a kitchen. Perfect for a family with two older sons (18 and 16; wifi was good).
The living room is bright. The apartment is right in the centre of Malaga but you don't suffer from noise and there is a (small) supermarket around the corner and everything else you want in the neighbourhood.
I thought a disadvantage was food odour nuisance from neighbours (via ventilation?) and narrow beds.
But all in all we were very happy with the apartment and the location.