Okay, this brush and I have had a bit of a love hate relationship, but overall it is a very sturdy and effective tool for applying makeup. I feel this brush is only effective (for me) with thicker formulas of product. After many months of trial and error I can safely say that I would pick this brush up for heavier liquid foundations and cream foundations. I do enjoy the fact that it has the same silky smooth feel as the rest of the collection, but in some situations the shape didn't work for my face. With that being said, I know many who love this brush for all their facial products, but for me I tend to stick to things with a heavier or creamier consistency for this brush. I do urge you to try it though! :)
I bought the Core Collection of RT Brushes specifically to get this particular brush (that's another issue - I wish all the brushes were sold individually, especially the eye brushes but some of the others as well). I had read rave reviews about how amazing this was for applying liquid foundation but for me, it doesn't work all that well and the Expert Face Brush is much better, even though they look so much alike. I do like the Buffing Brush, though, for applying powder/mineral powder foundation and also for buffing my powder blush to give it a more "from with/natural" look.