I love Essence products mostly because they are cheap and effective, but this mascara didn't really work for me. It smells funny and irritated my eyes occasionally.
Yes, it did stay when in contact with water, but when I would remove it with eye make-up remover, it would feel dry and very little would actually come off. It also dried up quite quickly, considering I don't use it every day.
I would much rather suggest the Essence Get Big! Lashes (Volume Boost Waterproof). :)