Great place at a reasonable price.
I really enjoyed the two weeks I stayed at Arturo's apartment (safe location, very close to Cuatro Caminos metro station, 2 big malls nearby and lots of restaurants and businesses, courteous and helpful condo staff, etc.)
I also like the fact that Arturo is very responsive and helpful. It was my first time in Mexico City and Arturo provided me great tips about the area and the city.