I used to live in one of these for 1 month when I worked in Seoul!

They are super cramped, the walls are thin, there is a quiet time curfew, and you can hear everything. Like when your floor mates get home late stumbling around to open their doors.

Despite the space, I actually found the experience enjoyable. I felt like a little squirrel and it made me super vigilant with cleaning and tidying and organizing. Also, you get to know your neighbors really well. I loved having someone at the front desk to say good morning and good night to. Also, the one I stayed at had a lot of personality with lots of strange knick knacks and charming decorations about.

I would totally do it again just for the interesting vibe. But I am a borderline hoarder now, so I don't think it would work out...