The brush is SUPER caked when coming out of the bottle. It works okay if you take most of it off by brushing it against the rim. I did like that after a long day it doesn't get flakey and in your eyes. And it is DEFINITELY waterproof, it's actually a little difficult to get off.
I still use it but probably wouldn't purchase it again. Makes your lashes look thick and nice, I just wish it was easier to get off at the end of the day