I had a fantastic stay at Erica's place. Erica waited for me even though I arrived a bit late for check-in. The room is simple but cosy and very quiet. Erica was a very nice host. She also very kindly washed my clothes for 3€, which helped me a lot. The location, just one stop from Atocha and two stops from Recoletos and Sol, is perfect if you are arriving or leaving by train. You can buy a 10-journey Cercanías ticket for 10€, which makes it very cheap to get around. Overall, my stay has been a great experience. Erica's place definitely is fantastic value.