I was on the hunt for a good foundation brush as the normal foundation brushes that are flat and oval shaped seemed to be leaving what can only be described as 'lines' on my face when applying my foundation as though it wasn't blending in properly and leaving sort of streaky lines. Obviously I wasn't happy about that so I started looking at MAC brushes...wow aren't they expensive?! All there foundation brushes were sort of that shape too and even though I knew they would be better quality I knew I was still after something else. I already owned the Real Techniques stippling brush (I use this one to literally buff cream blusher into my cheekbones on top of bronzer, the stippling motion helps to not disturb the bronzer that's been applied) which was my first RT purchase so I started looking at videos of the expert face brush.
I purchased this one and so glad I did because I'm so happy with it. According to Samantha Chapman (Founder of Real Technique Brushes) this Real Techniques Expert Face Brush is designed for a more medium to full coverage application, where as the Real Techniques Buffing Brush (which is a great favourite of bloggers) should be used more to apply BB Creams and Tinted Moisturisers. However they are both multi purpose brushes.
I find I can use a great circular motion and you definitely don't need a lot of foundation as a little goes a long way with this brush. Once blended in my foundation looks smooth, lasts well and looks flawless. I couldn't be without this brush now, I liked it so much I went and bought another!