I have now used this lip stain for about half a year and can do nothing but love it! I use the shade Hush, which I think is a perfect neutral everyday color that can easily be built up in intensity. The longevity I think is very good and easily lasts through a day at work or school, depending on how much you use and how long it sits on!
The only negative I would say is the packaging. The packaging feels very cheap and plastic. The applicator picks up a lot of the product, as the stopper doesn’t really take off enough product. This leads to me wiping some off on the "edge", which dries quickly and forms a layer that needs to be wiped away, hence it feels like some product goes to waste.