I find a few coats is required, but this is quite a 'wet' mascara so sometimes I get marks on the skin where my lashes sit. I find it takes 2-3 coats to get a look I'm happy with, but sometimes the wet consistency of the product means clumps, but a lash brush fixes that.
The waterproof formula sticks like the proverbial to a blanket and the washable formula comes off quite nicely. I love the length it gives and the volume as well. I'm allergic to latex based false lash glue, so this is often as close as I'll get to falsies.
This mascara is amazing! It give you full, long lashes and stays on amazingly even if its not waterproof. Its quite clumpy but if you brush it out and dont apply too much its an easy problem to get rid off. Overall amazing product, makes my lashes look like heaven :) definitely worth the purchase