The first thing that comes to mind when I think about this brush is that it's so soft! The bristles aren't scratchy at all. It's perfect for dusting powder products over the entire face. I personally like to swirl this in my ELF Complexion Perfection and apply it over my face, it works really well for that. It could also work for applying bronzer to achieve a healthy, sun kissed glow.
Another thing is the overall appearance of it. It looks and feels so professional, sturdy and expensive, when really it's far from expensive at just £3.50. I've never had any fall out from this brush either.
Definitely think everybody should have one of these brushes in their collection.