I bought this brush along with the synthetic buffer. I have a love hate relationship with this one. I works really well for applying pigmented blush so that it doesn't look so vibrant and contours pretty well. What I HATE is the fact that it sheds as others have mentioned and it seems that the bristles on the outside of the brush tend to stick out.
I will continue to use but don't think I would recommend anyone buying this.

I've used this brush for both blush and contour and it works very well for both. However, it does shed a bit initially after I bought it. Also, I find that it's scratchy and I'm looking into finding a replacement for it. I do like the shape and size of the brush, similar to the Mac 109 but I don't care for the quality of the bristles.

I never really saw what the big deal was with brushes shedding until I bought and used this brush. When I use this brush I am literally picking hair off my entire face. This brush is not harsh, nor is it very soft. However, this blush is excellent for blending out blush if you feel like you've applied to much. It also works well for the application of powder. I might just use this to blend out my blush and also to apply bronzer. If I lost this brush, I wouldn't miss it very much.