I was able to look at the Kuiu gear at their office as it was close to my home. I bought the Guide jacket, Attack Pants and Rain gear top and bottom. The Attack pants are very good, quiet, move well, and dry very fast. I didn't get much of a chance to try out the Guide jacket as it rained every day I was in the Yukon. That being said, the Rain gear is the best I have ever used, and I've tried just about everything in the last 40 years.
I thought the rain gear would be too noisey, but found that when broken in and especially when wet that it is pretty quiet.
It moves very well, vents extremely well, and is very strong. I spent many days bushwacking both on foot and horseback and the rain gear held up against lots of brush and sharp tree staubs. It is the best rain gear I have ever used.
I am very skeptical about new equipment and all the hype that goes with it, but I found the Kuiu stuff to be very good. The primaloft jacket is also very good. I tried on the neck gaitor, beanie, and gloves but found them to be too small for normal sized grown men. Hope this helps.