I have some that I've worn over the last few months. They looked kind of rough from the start but haven't had any functional issues as far as holes or anything go and I've otherwise liked them. I have a hard time telling a massive performance difference between them, my merino socks of various brands, and other alpaca socks that I have. People that are in the field more than I am might be able to give better feedback.every third ad for me on facebook is for hollo socks, which are alpaca wool. anybody tried those yet?