I booked for three nights but on the first, the air con shorted out temporarily, and I found at least 20 bed bugs, in the corners of the walls and crevices of the curtains.
I asked the receptionist/owner (?) and he feigned ignorance, when I asked him how many other people had reported this problem. He was shocked and said it hadn't been open for long, and when pressed said three months, but there are reviews dating back two years.
He went up to my room, saw the blood smeared walls and sheets with black marks (the sheets aren't laundered regularly, mine had stains when I first arrived), and offered the bed above. When I checked that bed, it had not been cleaned and there was a menstruation stain left from a previous guest that looked like it had been a while ago. I was given bug spray to help, and personally requested some tape.
Another hostel I stayed at also had bed bugs, but dealt with the problem by removing the mattress and using a heat gun on everything.