My private single had a pretty big bed, a TV, fan, mirror, table, and hooks. For 33 euros, I thought it was a good deal. It was on a residential street on the the third floor of an apartment building and it had a very homey feeling. The street it´s on didn´t give me the safest feeling, but it was Halloween night after all.
If you´re young, and looking to meet others your age, this may not be the place for you. I´m 20 and I think I was the youngest one there. There also wasn´t a central location for everyone to hang out except for the small kitchen.
Overall, I would recommend this place and stay here again if I return to Madrid.