I love love love this brush.
So what is so special about this, I hear you cry?! Why is is better than any other brush? The answer is, the bristles and the application technique. The bristles are said to give an 'airbrushed' look, and a more even finish than regular brushes.
The technique is a little different from other brushes, especially if used to apply foundation. Instead of painting the product on in a 'wiping' motion, use the brush to 'pat' on the product and swirl it around in tiny circles. This technique gives the even finish. If you are unsure what I mean, there are a lot of great tutorials on youtube.
The stippling brush applies a flawless finish and is quite easy to use. I think it cuts down application time compared to when I use flat foundation brushes and this brush is a fraction of the price of the high end stippling brushes. And... It is pink! Who doesn't love a pink brush?
I am so glad I bought this and have an alternative to the average flat foundation brush. I am not a fan of normal foundation brushes as I think they give a streaky, uneven finish.