My opinion on e.l.f Brow Kits differ greatly compared to the other reviews on the most part because it doesn't stay on and leaves me with horrendously thin and patchy eyebrows whilst in the middle of town. I purchased this in the Medium Brown and found that the colour matched my hair colour and skin tone perfectly and once I had watched some tutorials gave it a whirl.
It was easy to use once I got the hang of it and filled my eyebrows in perfectly but the huge downfall was that it doesn't last all day! The brush that it comes with it a dud and should not even be in the same packaging because it downgrades the quality instantly. The brush was hard to use and the bristles are far too soft to get a nice sharp edge so it a waste of time using.
I find that it lasts for a long time because you don't need alot on the brush to achieve maximum results. The annoying thing besides it not lasting for long is that I had to purchase a separate eyebrow brush so that I could use it correctly when I could have paid the same amount for one product that would have worked and come with a good brush.
In summary the e.l.f Brow Kits is cheap but low quality and mediocre at best.
I have the lightest kit and I found that the gel colour had a slight orangey kind of tint to it, which isn't my preference but I can see how if you have darker eyebrows this kit could be really effective, The brows also have really good staying power I still use the powder sometimes to set my eyebrows even if I don't use the gel. It is a very reasonable price, and the brush it comes with is perfect, I still use it with my other brow products. It is also very compact and perfect for travelling or keeping in your handbag for touch ups, I just wish the colour matched my eyebrows!