When going to buy something from MAC, we already know it's going to make quite a dent in our pocket. Regardless, the woman at the counter told me I'd need this for my gel eyeliner and I took her word for it. I AM SO GLAD I DID! This has made doing eyeliner on my top lid, the easiest step of my make up routine. It gets enough product on the brush and does precise, clean and straight lines everytime.
I've had my brush for so long and it hasn't lacked in effectiveness at all!
I highly recommend it and definitely to buy the fluidline eyeliner from MAC with it. What a dream-team.