We stayed 5 days in Arantxa's apartment, and we can just say, that we were so much satisfied.
The apartment is small, but ideal for two persons, it was relatively clean and everything necessary existed. To highlight is especially the location of the apartment - right in the middle of the downtown, the sights are within a stone's throw of the apartment and the street is so charming. Furthermore, the harbor and the beach are without difficulty within walking distance.
The communication with Arantxa was perfect. She was very friendly and helpful, she also organized a lot of things in malaga for us.
So on the whole, we can optimally recommend Arantxa and her apartment to anybody!
Malaga is definitely worth a trip. :-)