I finally bought one in preparation for the wedding we attended last March. Yes, all the raves are true but let me share with you some points from a girl with very sensitive eyes.
The mascara has curling effects. Even if you don't curl your lashes, you will still end up with brighter eyes. The mascara includes a comb wand which is a first for me.
For my everyday look, I apply one coat. For the wedding, I applied two coats on each eye. I still have to shake the wand when applying because sometimes the product clumps up. If I can't fix it with the comb, I "blot" my lashes on a piece of tissue to remove the excess.
This is great even if you have sensitive eyes as long as you remain in a cold place. Once sweat gets mixed in, my eyes become itchy. It also kinda "melts" (lacking a better term) when it's hot making my eyes red. I know it's waterproof but my eyes don't lie. It doesn't make the area under my eyes black though so that's a plus. Be careful not to scratch your eyes as you may end up with falling lashes.
I can easily remove this with my Etude House Makeup Remover then wash off with another Etude House product (which I will tell you about really soon). I remove this immediately when I get home to avoid eye allergies.
The Maybelline Volum' Express Cat Eyes Mascara is always out of stock at Beauty by SM and Watsons so if you want to try this, go buy one immediately when you see it!