Nice hostel room !
To be honest, this district is a bit unsafe area (I heard that from my friend in Paris after booking ^^; )
However, even though, the hostel are quite clean and not that noisy, just like other kind of dorm-type hostels. Also, the staffs are very kind and nice, and the guests as well.
In the night (around 8pm ), though I could feel the smell of drugs from the people on the road, that didn't cause any problem for me, alone girl tourist walking straight from the metro station to the hostel. Of course, there's no problem in daytime.
Please remember to get ur lock for using the locker tho u can buy one for 5 euros.