No, I wouldn't call it warm. I wouldn't wear it next to the skin. I would wear it on top of a cardigan, as an "accent" piece. More as jewelry, not as a neck warmer.
It isn't scratchy, but it isn't soft either. I guess anything worn around the neck is going to block the cold and wind...but a ribbon scarf doesn't bring your body heat back to you, as wool does. Even if wet, wool will bring your body heat back to you. That's why acrylic isn't allowed on "expedition guided" Mt Everest climbs, and such. Everything has to be wool, as regards clothing innerwear. That's what I heard from my brother-in-law who is a mountaineer.