To preface, I don't have a lot of natural lashes in both length and volume.
While the formula of this mascara is good and definitely gives me length and definition and lasts well, the brush is tricky if you don't have a lot initially to work with and can clump easily. For lashes like mine, a small slim brush such as Benefits They're Real is much better.
This mascara was recommended so I purchased the mini to give it a go. I found it really wet and the brush gets clogged, yes it gave great volume but my lashes looked clogged so sadly not for me.