We had such a great time staying in Kristian's apartment. His friend greeted us and was very nice. She did not speak English but we had two Spanish speakers who could talk to her. The apartment was very clean and absolutely adorable! Kristian also left a map that showed all of the nearby sites and museums. The apartment was centrally located so we were able to walk everywhere. The day we checked in Kristian sent a message with some suggestions for lunch and/or dinner. We tried one of the restaurants and it was delicious! The only thing I'd note for people to keep in mind when they stay is that the hot water heater is small so only about 2 people were able to take short showers in a row. Even with that small issue, it was such a great place to stay. I will definitely try to stay here again next time I'm in Madrid.