You get a single/ double room in a hostel with your own bathroom. The accommodation is also quite central, so for that money you cannot expect too much luxury. My room was fine though it looked nicer on the pictures… they forgot to put new sheets on the bed, but it can happen, it was resolved and communication was always good. BTW It is not unusual in Sweden that you cannot open the windows. It gets very cold in winter time and so the rooms are isolated. There are also rooms without windows but you can actually see what you book on the pictures beforehand. So all in all I would say it is totally fine for 1-2 nights in the middle of Stockholm if you have a low budget. :)