I am knitting something from NORO Kureyon sock yarn. Can't say yet what it will become, because it is a present to somebody ;).
I choose this yarn for the colors, they are fine! But I don't like the quality of the yarn and would NEVER use it for socks! It is very uneven spun and only one ply. Not very strong either.
It is made of 70 % wool and 30% polyamide.
I suggest that NORO changes the name from 'sock yarn' into 'art yarn'!
I do have an second skein in an other color range and shall knit from it what I planned but I don't think I will buy it again.