Review (4/5): I like the look, wasn't crazy about the brush
I really like it, but the brush that came with it didn't look like the one in the picture, it looked like a brush one would use for blush. I was a little annoyed at that but an easy fix will be to buy something I'm more comfortable using. I did try using that brush to see if perhaps it would be easier than it looks. At first I admittedly poked myself in the eye a few times, but after I got used to it, it DID work but it wasn't the easiest to use, It didn't get all over my face like some review suggest, as that's more of a manner of learning how to USE cake eyeliner, if you haven't used it before I would suggest look up some information on it.
No, it isn't waterproof as you have to mix it with water in order to put it on, so be careful if you get it in your eyes and your eyes water a lot THEN you might get it on your face, but a simple fix to that is using a cue tip. All and all it can be an awesome addition to your make up kit, but I would suggest purchasing a small brush to put it on.