Great location in the historic center of Malaga! It was pleasure to live 5 minutes from all main attractions and 20 minutes from Malagueta beach.
Flat itself is quite small and not exactly "flat" - it is rather a room with incorporated kitchen and bathroom. However, for two people it's ok. It's great to explore the city, not to sit at home.
Arantxa and George are great hosts, always happy to help. They gave us very detailed recommendations and were very welcoming and responsive.
Two minuses are: 1) flat is on the fourth floor, no elevator, so consider weight of your luggage. 2) It can be extremely noisy at nights, again, due to location at the very center and the fact that people in Malaga know how to have fun:)
But still, i would recommend this flat and stay there again.