Who wouldn't love knitting with this delectable yarn...it creates a beautiful halo while knitting and is so soft against the skin. Tart is a wonderful rich color - perfect for a man's scarf, for a guy who loves red but doesn't want fire engine red.
Nice stitch definition, but since it's soft, it's not a defined as a firmer yarn but I think it's perfect for this project.
Color in JBW photo is spot on.
It seems on the light side of worsted to me. You can see my project on Ravelry under Guernsey Scarf at http://www.ravelry.com/projects/elaineflo01/guernsey-wrap-2
don't know if that link will work, but worth a shot.