This is ancient apartment but with modern renovation. it locates right beside major roads but in a quiet street (except the garbage truck did make noise at midnight). Very clean, tidy and spacious. Mar is the best host I ever met in airbnb. If you are first time to Madrid and about to travel on your own, you must listen to Mar's recommendation. We followed her suggested route and briefly went thru all major attractions in half day. Also visited 2 museums during free hours by Mar's tip. Definitely would recommend Mar's apartment to friends.