Loved this space for the purpose I needed. I stayed only 1 night and Karen is very welcoming. The location was perfect, near the metro and a short walk away from the train station. Karen's place is very clean, quiet, and she allowed me to use what I needed as if I lived there. Her internet was very fast which I needed for work during the night. Lots of restaurants nearby, Plaza Mayor is 20 min walk away, and everything was perfect. Check in and out were both easy. Would definitely recommend this place for a solo traveller in Madrid. Thanks Karen!