Apartment: we stayed with two kids (3 and 7) and two adults. The convenience of the apartment was what we really liked: enough space, good value for money, walkable distance to the center, free parking included and everything else you need for a short week in Malaga. Loved the bathroom, with great shower, bath and bidet. The bed is really ok, although a bit firm. The kitchen isn't equipped with everything you're want if you were to cook there, but who wants to cook for themselves when they are so close to great restaurants.
Location: as described, walkable distance to the center (10 mins) and the beach. Should be a rather quiet street, unfortunately we got to meet the workers, installing fiber underneath the pavement next to our apartment. The apartment complex can be a bit noisy if you're unlucky (when there are other vacationers making noise).
Host: we didn't have the pleasure of meeting Maria in person but she arranged a lovely stand-in to welcome us. Maria was quick to contact. There was a problem with a leakage in the apartment and she took care of it without us even noticing. What a great host