This blending brush is worth the $40 alone
I LOVEEE this trio specifically for blending brush. I use it every single day. I have been looking for a brush like this and it is definitely unique surprisingly. I like it because it is pretty dense and definitely one of the largest blending brushes out there. It's much bigger than the sigma e40 (a brush a lot of people think of as large). The angled brush is also nice and very precise, and I've never used the liner brush.