I have the expert face brush and the blush brush. The expert face brush is a great brush for applying your liquid foundation, it makes your foundation look flawless and gives you a good and even coverage without streaks and blends into your skin really well. The bristles are sturdy but soft and dense and don't shed which I have experienced in the past with other brushes.
The blush brush is a great 2 in one brush as I use it for both applying blush to apples of my cheek but you can use it to contour with. I also know some people who use it to apply powder too. The bristles are the same as any other Real Techniques brushes soft and sturdy but the blush brush is slightly tapered so it allows precise application and this is why I sometimes contour with it. The blush brush is quite a big brush out of all the Real Techniques brushes I own but its still a great brush and blends really well.
Both brushes are £9.99 which I think is good value for money and I always think you need to spend a little more on good brushes.
What are your favourite Real Techniques brushes?