I love this mascara so much that I am honestly furious I didn't discover it till age 30. I'm about to use up my first tube and I will definitely be repurchasing.
I teach hot yoga and am in a sweaty room for several hours a day, so makeup that looks natural and stays put even through rivers of sweat is KEY. My personal ride-or-die items include NYX waterproof brow gel, those Revlon balm stains, Urban Decay All Nighter, and this. I've taught three classes in a row and this mascara literally does not budge or flake a single bit, even if I rub my eyes to wipe away sweat. And when I want to take it off, just a few handfuls of warm water pressed to my eyes and the tubes slide off completely! I don't think I've ever seen my eyes totally and completely clean of makeup unless I don't wear any for several days. With this mascara, nothing gets left behind. LOVE
Other people have talked about not using the white base coat; I've experimented with this, and it definitely affects the longevity. If you're just having a normal day of non-sweating, no rain, etc, then you can skip the base coat. If you're going to be getting damp or sweating a lot, I would recommend using the base coat for sure. Also, the base coat does wonders of lengthening and thickening. I definitely use it every time. Clumping and too-thick application are solved by simply wiping off the tip of the wand on some toilet paper to get rid of that big glob of product. This is true of every single mascara I have ever used, high-end and low-end alike, so I guess people complaining about it never learned that trick.
I realize that there are higher-end tube mascaras out there, but a) I'm cheap and b) I have no complaints about this one, so unless I get one of those other mascaras in a birchbox or something I don't plan on fixing what ain't broke.