MAC Fluidline eyeliner- any reviewers out there?

Wondering if anyone has tried this eyeliner from MAC? Looks like there's a vibrant blue color available too!
The description makes it sounds "Pretty, Pretty, Pretty, Good":
Ultra-smooth, Fluidline’s gel formula provides the precision of a liquid liner with a silkier, softer finish. Goes on “foolproof” with a brush in an easy dip-and-stroke action. Long-wearing. Smudge-proof. Lines up in a rich array of colours and finishes.