This place is accurately described as a very small space with no windows. It is good for people staying one night and doing nothing but crashing for a few hours.
Unfortunately, the previous guest stayed there for a month (which I can’t imagine and would not recommend, as there are no windows and very little air circulation) with a pet, and the damage to the carpet and the mattress is pretty intense. The pet/urine odor was bad, and I’m not sure if it was dander or mold, but it was hard to breathe. It would really benefit from an air filter or at least a fan. As another review mentioned, the shower water gets lukewarm at best.
This is no fault of the host, but the other guests were awful. We were up the majority of the night listening to the upstairs stomp around, and I had to clean up after them in the bathroom every time I used it.
All of that said, just a few small fixes and the room could be a great budget option. Expect a “deluxe” type hostel with private instead of shared rooms, great location, and very friendly cleaning service.