Its easy to communicate with Miriam. The house was so clean and well organized. Its very close to metro station and central. I enjoyed to stay. Only thing, the weather was so cold in Madrid at the end of december. i could get protect myself in the room, the bed was not so high and the cold was coming from floor, then i got cold. Second night i used blanket under me and used heater wisely, then got better sleep. Last thing that you need to bring your slippers.
If checkin-checkout times are not okay for you, the price-performance is very nice. I recommend Miriam place to anyone.