I wore Kuiu clothing for years and it is very good. I still think Kuiu Yukon gaiters are the best there is. That said, I have watched my better half get insanely-close to elk wearing Sitka Open County camo that I finally told her she had to put her bow down and start hunting with a spear. Needless to say, I have been wearing Sitka Open Country exclusively for the past several seasons. I too have been able to get waay close to elk that I'm a believer in that pattern.
I am a fan. My son and I use both Sitka and Kuiu. Both great stuff. My son is hard on gear and the Sitka seems to hold up better. He still thinks he is playing college football. Lol! Had a bit of a run in with Kuiu customer service but got it ironed out with some persuasive communications.