I must say this is my current favourite mascara. Chanel Inimitable Multi Dimensional (in Navy) works for me in a way I never imagined it would. I am happy with the results after a week of testing it.
There is something about the bristles because it loads colour well and spreads it evenly onto each lash, while instantly curling it upwards and helping it stay that way till I remove it at day end. It also makes my moderately long but very fine lashes to appear thicker than they really are, without clumps. I can do a few coats for some drama without fearing for that doomed 'crimped' effect.
I also like the fact that the colour Navy actually stays navy without turning into an electric blue once it's on the lashes. Some mascaras say navy or dark blue on the labels but once applied you realise it's actually some cazy blue with which you can't get pass the office elevator without quirky looks from your colleagues!
Removal is a breeze. Wash gently with water and watch the coats disintegrate. I enjoy wearing and removing this mascara.
Downsides ? It clearly has a Chanel price tag :)