We stayed with two (29yrs both) in this flat for 2 days in end of May. It was perfect, José even picked us up at the airport Malaga. We really enjoyed the stay there.
It is a 10 minute (slow) walk to the Plaza merced, where many nice bars and the Alcazabar are located, and 20 minutes to the beach. But you could even take the bus.
The flat was really clean, nice and we had a feeling like at home. There was a fridge, a microwave (with grill) and a cooking plate. José had a map prepared, with the most interesting places, he also recommended some nice and good bars for food and drink.
If I ever come back to Malaga, I'd like to come stay again with José's flat!