The only thing not great about any hanging file folders I've ever noticed is that when you put them in the file drawers there is a gap at the front and back that the hanging tabs seem to love getting stuck in - if the tabs could be wide enough to not get stuck - or maybe the drawer rod that they hang on shouldn't have those notches in front or back?
It was advertised as having 25 folders per box: I bought three boxes since I needed 72. The first two boxes had 24 folders the third only had 22. I was short one. Oh well. Next time I know to count what is inside the box.