I while back I contacted a podcast author that I have listened to for years now (I very seldom reach out like this). Anyway one thing I told him was that after I heard his interview with the Kuiu founder Jason H about a year earlier I had started buying some KUIU pieces and that I would be buying more because I liked their products. I couple a days later I got an email from Jason H thanking me and letting me know if he could do anything for me to let him know.
This post is not about their CS per se, but to say I believe they genuinely care about their customers and that it starts at the top... which is after all "Customer Service".