Thank you Hugo for the stay, all went well !
The place is very basic but felt confortable and clean. It was quite and warm. It is perfect if you want a cheap but convenient place to stay in NY.
You need to walk 5 minutes to get to the subway station with line 1 which is convenient to go to Manhattan (about 15-20 min to be in Time Square)
I would not say that it is too safe, but I went back very late alone one night and I felt safe. I had no problem in the subway or in the street.