Save yourself the hassles and find someplace else. The hostel was freezing cold at night- the windows didn't fully shut and there is no heating. And this is in a city that reaches the 30s (fahrenheit) at night. They claim to have heated rooms, but they only use space heaters and they don't have very many. There was no hot water either. This would be one thing in a super cheap hotel, but I was charged $50 a night for what was basically camping. The breakfast was plain bread, period. Ther was a broken toaster if you wanted plain, burnt bread. Whenever I asked for help they told me to come back later. even when I asked for extra blankets they wouldn't help. Despite the fact that I could see they had unused rooms (with blankets that weren't being used either!
There was also a huge noise problem. I was up half the night because they have a bar right next to the rooms and pump out techno non stop. I don't think they realize that many of their customers have early morning connections to Machu Picchu and don't appreciate the noise.
They are pretty unscrupulous too. I booked three nights, but after the first night I decided to move someplace better. They wouldn't refund a cent or even apologize for the poor service. I scouted other hotels in town and found dozens of other, great options, so if you are looking for something in Cusco, keep looking! There are much better places out there!