In general, I can barely complain. There’s just a few things that bothered me/ I noticed:
1. There’s a huge tube going through the room which is not shown in the pictures (you can hear when someone uses the toilet flush).
2. It is very dark (yes, it has no windows obviously) but there are only 3 lamps which are quite dim.
3. You have to walk 30-40 minutes to get to the old town.
4. The airflow in the room is fine, though it’s quite chilly.
If you’re looking for a cheap place to sleep at in Stockholm without spending much time in your room, I’d recommend it!