Sonia Kashuk's synthetic flat blusher brush is surprisingly good considering the price. I have paid up to $40 for brushes like this and have been disappointed by shedding brush hairs, and poor performance.
I wanted to get something that I can use with my new Palladio wet/dry foundation.
The quality is superb. The brush feels wonderful. It applied my makeup beautifully without streaking it also blended me in flawlessly.
The price is awesome. I love the look of the brush, it looks high quality, and performs like it too...this is a MUST HAVE! If you buy anything from the Sonia Kashuk line - let it be this you won't regret it!
UPDATE: I have used this for my Benefit Get Even powder and fell in love again. Because I couldn't get this powder to apply the way it used to (I swear something is different in the formulation) I was going to toss it. Not anymore - this brush is perfect. As a matter of fact it made my skin look flawless with its precision!
EDIT: I used reviewer JRM1862's advice and used this with my Revlon Colorstay makeup and got the same flawless finish that she raved about. I am hooked - this is the perfect size to work across cheeks, forehead and chin. I would say this is my favorite brush of all time to work with foundation, it doesn't matter if they are powder, creme, liquid or finishing powder they all go on better with this brush. My HG>3. Also, this brush picks up just the right amount of cheek color. It is dense enough so that I don't have to swirl all around the pan.