I love this Mac Lipglass! The formula isn't very sticky at all, but it doesn't feel like it is going to slide right of my lips either. The color is beautiful - a nice pink with shimmer. It's not very opaque so it adds just a sheen to the lips. It'd be great over so many different lipsticks!
The packaging is nice as far as the clicky pens go. I wish it was see thru though, so I know how much product I have left.
I wish I would have bought more colors!! I think these were LE :(