I discovered this yarn while working on some projects out of Japanese Inspired Knits.
If any of you are looking for #2105 light gray, it may help you to know that they changed the name to 2s. (Well, I will have to confirm this once I receive the extra yarn, but google tells me so. Seems the # changed mid-project for me).
I've worked with a lot of alpaca before. This one sheds at lot more and isn't as soft as other alpacas I've worked with. However, it does come in a very good range of colors and is a nice weight.
I probably wouldn't purchase it for projects I was creating on my own without a pattern, but if you have a pattern that calls for specific colors in this yarn, it's a decent alpaca-wool blend.