My wife and I peaked our heads in, but we arrived too late to get a spot. During the summer, the beds are given out on a lottery system. Numbers are distributed by 9 a.m. and the drawing is at about 11 each morning. The inside looks like any other HI hostel. I didn't see anything special.
I would skip this because even if you stay (cost 90FF), you will have to eat in this very expensive city.