At £12.99, this is pretty pricey for a powder brush. However, its huge so applies powder pretty well and evenly, and is incredibly soft.
Admittedly, in hindsight I probably wouldn't have bought this brush. My advice to you is that if you're looking for a powder brush, go for something cheaper as powder brushes are really basic. If you'd like to extend your Real Techniques collection, I'd pick something more exciting! But if you feel like splashing out or just want all the Real Techniques brushes, this is definitely a good powder brush.