This yarn will knit on almost any needle you choose. In retrospect, I think using larger needles than 6mm will cause the yarn to “fluf” easier…
When you knit on smaller needles, the yarn pulls together and becomes harder with visible holes between stitches, it doesn’t fill out the stitches like wool. It is glossy and the colours are radiant, but it sheds a fair bit because of the mohair. It works well with loose, drapey sweaters and less well with things that need to be elastic and have a spine.