Warning: Do not book here. This place is overpriced and unreliable. Cusco offers many better options for the same or less money. Our experience was truly terrible, characterized by a complete lack of communication – their phones don't work, and messages go unanswered, which is critical when you rely on reservations for late arrivals.
We had two reservations, both disastrous. First, they changed our rooms due to an alleged "Expedia error," forcing our group to share beds on a holiday night with no other options. We gave them the benefit of the doubt, but it was a mistake. Our second reservation was completely disregarded due to overbooking, leaving us without rooms despite a valid booking. We had to split up, with some of us staying in a different hostel.
Beyond the administrative issues, the facilities are poor. Check the pictures to see for yourself. Also, expect no toilet paper in your private bathroom, and towels (which we received damp from "laundry") are only available by request.