I have used a lot of different types of mascara, and I think Maybelline Colossal Mascara is the best "drugstore" brand I have tried so far.
Colossal does a great job of pumping up the lashes and adding color (I have light lashes) in a couple of swipes, which I appreciate. I have long eyelashes, and if I have to apply to many times I begin to look overcooked. That has never happened with this mascara.
I haven't had any trouble with the mascara running under normal circumstances, and my only real suggestion is that the separation aspect could be improved.
I think it is a four star product.