This yarn is SO soft and very nice to knit with. I'm knitting a lace project and it shows off the pattern beautifully. It feels like there's cashmere in it but it's just the soft wool. And you can't beat the yardage for the price. This will be one of my go to yarns. Due to the softness I don't know I'd use it for socks but if you want a knock out shawl, sweater, or other accessory - try this - you won't be disappointed!
Whenever I have a colourwork project, my go-to is Cascade. For socks, the Heritage does what the Cascade 220 does for sweaters: it's smooth, knot-free and comes in a huge array of colours. It knits up nicely with no splitting - just what you need when you need to concentrate on counting stitches and changing colours.