Javier is a very humble and kind-hearted man. He is very helpful if you need him. His home is very clean and tidy, and very well organized.
The room that I stayed in was big and spacious, and very comfortable. Javier is home conveniently located in the center with access to several transportation system. Honestly, every major tourist sight is about 10 - 20min walk from his home. I definitely recommend his home.