I just bought this a few days ago after hearing great reviews and trying it out at a Sephora. For those of you that like wearing liquid foundation, this brush works wonders. It allows you to buff the foundation on and gives you a streak-free airbrushed finish. Try it out at your local Sephora. Ask them to put on any liquid foundation using the Sephora Platinum Air Brush (#55). This is my new favorite brush for liquid foundation. 
Sephora #55 Professional Platinum Air Brush - $34
Oh, and did I mention it’s oh-so-soft? 