I recently stayed at Fernando's flat and while the flat itself was very nice and in a great, quiet location, unfortunately, our experience was somewhat marred by the ongoing renovation work next door. The walls in this building are very thin, we could hear the neighbors talking and watching TV, so the renovation noise was incredibly disturbing.
The noise was so loud that it was impossible to stay in the flat during the day. We came to Malaga to work remotely and due to the condition it was impossible, we had to go out to a nearby cafe every day.
The renovation work continued for a week out of our two-week stay, and it was disappointing that Fernando wasn't very responsive to our concerns and didn't offer any solutions to help us deal with the noise.
Despite this, I would still recommend the flat for anyone looking for a nice place to stay in Malaga. However, I would caution guests to ensure that there are no ongoing renovations in the neighboring flats before booking.