Stunning. Will never buy another eyeliner again.
I cannot believe how amazing this is. I was reluctant to pay $20 at first but now I am kicking myself for not having done so sooner. This glides on so smoothly AND STAYS, even on the water line! Did I mention I have very watery eyes and oily lids? The color is superb and the best I've ever seen. I've tried: Revlon color-stay, Maybelline Unstoppable, Jane Gel Liner, Covergirl, Loreal, Stila etc... NO. This is head and shoulders above them all.
But I don't recommend getting the BB eyeliner brush. Its nice but waaay overpriced for sure. I recommend stopping by an art store like Michael's and buying a fine brush. I use a 1/8 Simply Simmons angle shader. Its amazing and cost me $3 as opposed to BB's $20 (yikes!)
For Asian Eyes: I recommend buying the shade of liner that matches the outer iris of your eyes. Since most of us have black eyes, I strongly recommend Bobbi Brown gel eyeliner in 'Black Ink'. For me, black looks more natural than brown because I have naturally black hair and eyes. The lady at the counter herself, who had amazing natural make up that suited her blue eyes, agrees, saying that it will prevent you from looking washed out.