I use this everyday and I love it. Can't live my house without it, one swipe and my spooly and I'm done. It holds my brows in place all day long and I think it's similar to the wax that is in the NYX brow kits.
I haven't used this lately, because I find it makes my eyebrows look thinner (I like the thick look). But if you want to shape your brows in a way they just won't stay, this is a great product. Don't go overboard with it, just one or two swipes will do. It will look waxy if you put on too much, and powders and other things will stick to your brows and it will show.
This pencil is colorless, soft wax. It holds hairs in place incredibly well, and all day. Because it's wax, it is resistant to water. If you just want your combed brows to stay in place, this is a great product.
It's not a miracle product, or particularly innovative, and there are other wax pencils on the market that are fundamentally similar, with lower pricetags.
It definately holds those unruly eyebrow hairs in in their place and helps add that perfect looking shape to your eyebrows. I use it weather I put make-up on or not because either way I like my eyebrows to look somewhat nice. Usually if I don't use this they do whatever. This really helps control every hair and it's a descent price than other shapers out there.