This mascara provides good volume and decent length and definition. I haven't had clumping issues with it. Mostly it’s focus though is on volume with a decent amount of length as well. I find the thick tube a bit odd (it just feels fat to me), but if that is my only complaint, then it must be a decent mascara!
The brush is average size, with no real taper, and the mascara wears well without flaking. Despite the lack of taper to the brush, I am able to do my lower lashes OK with this one. But I could see that bothering some people.
Of the various drugstore mascaras, this is one near the top of my list. Just be sure to see which mascara is cheaper or might be on sale when you buy. CoverGirl Lash Blastor Max Factor 2000 calorie.