We were staying for 2 nights, and our room is next to the street so it can be very noisy.
In the next morning, one of the neighbours played loud music at 6.30 in the morning for about 15 mins before the hostel staff knock the door and asked them to quiet down.
The room feels a bit humid and damp, less air circulation inside (especially if it's full with people) since window can only be opened 5 inches away.