Have been using this for years - it's pretty good stuff.
I have weak, flaky nails that don't grow very long without peeling off layer by layer.  I have to wear them short, which is okay. I've used other brands that just aggravated the problem. China Glaze products are the only affordable ones I've found that don't make the situation catastrophically worse. I don't blame products - it's genetics, really - but they're less likely to aggravate the situation. I don't mean for this to be "damning with faint praise" - the product is good, I just have lousy nails.
Rating: 5 stars