My favorite thing about this is the unique brush. One side is for lengthening while the other is for volume. When I first used it I would do lengthening first then add the volume second. So that's great. Another thing that's good is that it really does make my lashes voluminous.
The reason why I give it 3 1/2 stars is because of the formula. It's a wetter formula instead of a waxy formula. The wet formula doesn't work too well on my lashes because it weighs it down. Whenever I use this I need to re-curl my lashes after the mascara dries, which annoys me because I don't need to do that with the more waxy mascaras (I just curl, apply, and go.)