Sounds a dodgy place to go to though.
Holbeck is quite varied actually, varying from places I wouldn't go in the daytime even (the parts nearer Beeston), all the way to the areas north of Sweet St, inc Water Lane etc, where there are pubs and posher (relatively speaking) flats etc.
However, I still see many piles of broken glass at the side of the road in these areas, eg Marshall St, Manor Rd, Bath Rd where people regularly park. I definitely wouldn't leave my car there at night.