I usually don't knit with yarns that are heavier than worst weight. I just don't like knitting with big needles. My daughter saw a cowl pattern that called for chunky weight yarn. So I bought Rowan Big Wool. I love the spongy spring of the wool. It knit up to a soft warm cowl. I would buy Big Wool again for chunky weight projects.
I have made many beanies out of this yarn and it is the yarn I gave to my son and daughter when they were learning how to knit. Big needles and big wool made things easier and the results are so fast that it kept their interest to the end. I am now making a jacket and find the yarn to be very soft and nice to use. Great stitch definition and QUICK! I would not hesitate to use it again for big wool projects.