My friend and I stayed in Kristian's apartment for a few nights. Everything was great. His girlfriend met us out front and showed us around the place. She gave us great recommendations about where to go and Kristian checked up on us making sure everything was okay halfway through our stay. The location was so central we regretted purchasing our metro passes because we could walk everywhere. I highly recommend staying here. It's a great little place in a great location and Madrid was AMAZING!