I had a great time at Naty's apartment. Even though it's rather small, it's well equipped, comfortable and quiet. It feels quite cosy. Location is also very good, just minutes from everything in the historic centre and 15 min walking from the metro station when arriving from the airport.
Naty and her husband are super nice, always answering quickly and trying to help.
The only negative thing (for me) is that there's not a lot of natural light coming through, so it stays quite dark inside during the day. (It might actually be a good thing in the summer so that the studio stays cool.)
But except for that, I think it's a great option for staying in Malaga and good value for the money! And Malaga is great :)