Kristian's place is very centrally located with easy walking to many places and a short walk to the metro. The apartment I roomy and stylish. Good size kitchen and bathroom. The washer is modern and works well.
You do have to go up a moderate flight of stairs to the elevator, but the stairs are roomy and not steep. His apartment is on the second floor and an easy walk up the stairs.
Great place to stay if you are in Madrid.