I have two of these brushes. I have used synthetic fiber brushes for the longest time to apply liquid/cream products on the face. I do have to say that this brush is of good quality. The Nylon fibers are resilient yet very soft. It does not feel uncomfortable on the face, not does it have a prickly feeling.
The size and the length of the brush head is suitable to use on the different portions on the face. it fits well under the eye area or around the nose. Great to use for contouring liquids!
I also find that the brush doesn't leave much streaking when apply product on the face, so I do not need to find another brush to "buff" out foundation or blush. It does the job of blending it well into the skin. Aside from makeup, I use this brush to apply skin care products - may they be serums, moisturizer or sunscreen.
I LOVE the fact that this brush comes in two variants - a black and red handle. I have both and that really helps me in defining which brush I would use for a particular product or color. Which, eliminates product mixing.
If you are someone who doesn't want to use natural hair in their foundation brush, this is a great alternative.