I highly recommend Carlos' apartment! It's lovely, immaculately clean and comfortable. It's in an architecturally interesting building in a multicultural and vibrant community that's a few blocks from the Sunday El Rastro flea market and a short walk from the wonders of Paseo Del Prado. Carlos and Harrald are responsive, warm, interesting people who care very much about the comfort and experience of their guests. The experience of meeting them set the stage for our feeling extremely welcome in Madrid, a city we had never before visited.