I somehow got a sample when it first came out. I used it on a quilt, then purchased a whole bolt!... I love it. As others said, it really provides a nice quilting definition. Because it doesn't have a scrim, you need to quilt it more densely than W&N, 6" vs. 10". According to their web site, you can pre shrink, but they do not recommend spray basting. I have not tried to pre wash, but I will for my next quilt. I'll report the results.