I just got this and used it a few times. I got the white party/310. I like white eyeliner to help other eyeliners pop or just to highlight under the bottom lashes. I do really like this product and really want to try more colours. I do fine you have to give it a good shake and because I got the white one I have to clean the tip do to it getting stained from darker eyeliners, eyeshadow or the foundation. But still it's an awesome product.
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I was looking for colour and so picked this up in a teal colour. I've been wearing it all afternoon and it seems to be holding up well. we'll see how it stands up t o a full day. It's one of those marker style liquid liner.