I have to say, I'm actually really liking this mascara! And I HATE MAC mascaras!
My HG mascara is Diorshow, so I was originally used to the big brush- which I actually love! I feel like the bigger the brush, the bigger the separation and volume it gives! Just my opinion
It separates the lashes just the way I want it, and I can build to get the volume I want without clumping! This is a great alternative to my beloved Diorshow! I think probably the only thing I don't like is that it seems so watery. I guess I like mine thicker lol i don't know, but I have to be careful not to blink or get it on my lids after applying.
Other than that, I like it! I have to try it out a little more to see if I prefer this over my Diorshow. But as of now, I'm still in love with my Dior!- But Opulash comes REALLY close!