Before purchasing my Sigma brush kit a year ago or so, I tried asking around on MUA, which brand people liked better for brushes, Sigma or MAC. By that, I quite frankly meant: Are the MAC brushes so much better than the Sigma ones, that they are worth me spending so much money on them.
Obviously, people had different opinions. However, I noted that one person told me that the Sigma ones can do just as good a job as the MAC ones - except for the MAC 239 brush, which that person said simply could not be duped.
And yes... I do admit that the fact that Sigma has pink brushes, might have played a small role... a girl never gets too old for a little bit of pink!
Above to the right, you can see the MAC 239 brush (the lower one) and the Sigma E55 (the upper one), which is supposed to be a "Sigma version" of the MAC one. Both of these brushes are meant for packing colour onto your eyelids.
Now, as you can tell from the top picture, and the one to the left, the Sigma one is bigger and thicker. This is both a good and a bad thing. Since the MAC one is smaller, it can fit into the corner of your eye more nicely and it is precise enough to be used for placing shadow under your lower lashline as well - the Sigma one is too big for this. I also find that the MAC brush delivers more colour to the eye - the shadow's pigments seem to transfer better with it.
However, the Sigma brush does a good job when dealing with glitter - and it is my go-to brush for that. That being said, I don't use glitter on my eyes very often, so for me, the MAC brush is a winner here.
Definitely worth the money, and although you don't feel like splurging on all the MAC brushes, I think you should check the MAC 239 out - it will be your best friend before long!
What do you think? Have you tried either one of these brushes? Tell me!