I would recommend this place 100% because:
1) it's super clean and you got everything you need: small kitchen, nice bathroom (with rain shower), nice bed and a cute little balcony.
2) it's located footsteps away from the Atocha train station, so that's a big plus for train travellers.
3)it's a nice neighbourhood, (close to Lavapiés) and it's not far from the metro station to get to Malasaña, Chueca, gran vía etc.
The only thing was that the two individual beds that are put together easily slide apart. But it didn't bother us that much