Nader'a flat was perfect. Was able to relax as if at home, make dinner, lounge, but was also in a very central part of Madrid so anytime you walk out the door and walk in any direction, you are met with the hustle and bustle of Madrid. Close to a variety of plazas to explore.
Nader had a very nice driver wait for me at the airport and drive me to the flat. Nader was then waiting for me at the flat when I pulled up so I never even waited a second.. I would definitely stay there again.