The matte finish definitely looks great, but what I've found most most notable about it is that it makes the individual layers much less visible than with normal PLA or other more common filaments.
The color on all of the matte fiber HTPLAs are super-saturated. This yellow jumps out at you like a school bus. And the surface finish, even with thick layers, is just amazing.
Overall, I am excited about the products. I purchased a few composites and some matte products to test on my Prusa MK3. Save for the yellow matte material, they have performed well. For some reason, I can't get the matte to stay on the heated bed. I'm within the parameters for the material, but it won't stay put. Using a wide skirt helps, but only marginally. Otherwise, the quality is high and I'll be order more products to test and use for my prints.