I stayed for a month and my experience was quite good. His condo is located in a really quiet and peaceful area and it's easy to find nice restaurants or bars in the neighborhood. Easy access to the center of the city and the main bus terminals by using some metro stations. I was staying there to go to a Spanish language school in Salamanca. It took 20min on foot via Retiro park and every day I enjoyed walking to the school. If I could study Spanish in Madrid, I would like to stay his condo again! Thank you very much, Ian and Paul!