My fave thing about this mascara is the brush, it separates and really coats my lashes however the downfall for me is that it transfers onto my under eyes (I do have very oily skin though) I find that I can't wear this mascara for a full days wear, only for 2 hrs or so before it starts to melt and transfer
I have to say that I have tried sooooo many eyeliners with no success (I have oily eyelids). This is the best one I've tried so far but saying that I have to re-apply every two hours which I get sick of!
I swear I'll only use Lancome mascaras now - every time I go to another brand, I get smudges. This is a great formula, nice and voluminous and lengthening. I don't need curl so can't speak for that, but this is a great formula I would repurchase for sure. Also the packaging doesn't wear out awfully over time like other brands, it still looks good as new.