I stayed in Cristian's flat for a 8 nights with 5 friends, and it was perfect for us : 2 double bedrooms and one dorm with bunkbeds, furnished with wardrobes, mirrors, tables, fans... and even books in the dorm! We really enjoyed the rooftop terrace too :)
The flat is really well located in the city, close to all the bars, restaurants and clubs. The supermarket was literally in front of the building, which was quite convenient too.
Cristian was an amazing host, and made himself available for us whenever we needed his help. He replied very quickly when we had a question, even before we got there. When we arrived (6 hours later than planned because our plane was late), he stayed with us after showing us around the flat, to give us advice on the best places to visit, the activities we should do, how to get around Malaga, etc. He even brought us a pocket french-spanish conversation guide!
I definitely recommend this flat and his owner :)