Ruben's apartment was amazing! It was wonderfully decorated! Beautiful just like the pictures. We were 4 people and we all looked forward to coming back to his apt to chill in his couch and relax and watch TV. His apartment was in the best location possible!, you can literally see Plaza Major from the window, Plaza Mayor is the center of Madrid all the city highlights are within walking distance. We stayed for a week and only used the metro twice. In the same street as the apt you have great restaurants, supermarket, cafeteria, souvenir shop, bakery, list goes on.
Ruben lives in the same building and he was always just a message away if we needed anything, his recommendations were also on point.