I've been using this for years and it continues to be my go-to brow gel. It works great to hold my brows in place throughout the day. No flaking, no crunchiness. I have no complaints about the product and no problem recommending it.
However, I want to point out that while it is only $2 or $3, which seems like a super-great bargain, you only get .08 oz of product in the whole tube. So, the cost is $25-37 per ounce ! You can get other clear mascaras that work well and give you a lot more product, like .25 oz to .5 oz, per tube, for under $10. You'd actually be getting a much better value overall, even though initial cost is a bit higher. eg: Maybelline Great Lash clear, you can get this for $6 or less and you get .44 oz of product. That works out to less than $14 per ounce. Just wanted to point this out because I know the price point on the ELF is something that seems amazing and everyone raves about. Something to consider.
As I've tried multiple brands of both clear mascara and clear "brow gel" I don't believe there is much or any difference between the two in general. The only difference I see is that the manufacturer's charge a much higher price for anything that is brow related.