Let's start with: This is the best eyeliner brush I've ever tried.

I used to use an angled one, and considering I don't have tons of lid space, it was quite hard to make a thin line. But with the "210" it's very practical for me, so if you have hooded or almost hooded eyes, definitely try this brush. Although it is very delicate, it gives you enough control.

Quality wise, it feels expensive. Even after using and washing it, I noticed that no bristles came off. I know that in some countries, mine included, MAC retails for an outrageous price, but if you're looking into investing in a brush, get this one.