I stayed 2 nights at Javier's apartment. It was just as it is in the pictures - very clean, safe, lots of light and in a very convenient location. Javier's Mother checked me in and Javier came as I left - both were really friendly, caring and helpful. Communication was quick and clear.
As for the flat, the bed was super-comfortable, the shower was really good and the airconditioning worked well in the summer heat.
The location is close to Metro stations and downstairs is a shopping and eating precinct - all pedestrianised, so it is quiet.
I would highly recommend Javier's studio apartment for 1 or 2 people - I really enjoyed it!