Thank you very much for all the lovely comments, ladies.
dip's mom: I've used linen yarn in the past that has been rather rough, but being 55% linen/45% viscose the Linen Drape is quite soft.
scout52: The yarn was nice to knit with, but being made up of very fine plies it does have a tendancy to occasionally catch on the needle and split. The
strands are matt, but once knitted up the fabric seems to have a very slight glow. The colour range is lovely, and it drapes beautifully. I was going to say I'd use it again, but I think it's been discontinued.