Nader is a great host with a lovely small flat in the center of Madrid. We could't have asked for a more generous host who note only provided us with a warm welcome but enough essentials to ensure we more than comfortable during our stay. His flat was very pleasant to stay and would recommend to anyone to stay.
A tiny note, outside Nader's control, is on Friday night the neighbors upstairs were having a great party and therefore noisy throughout the night.