I'm a big Aurifil thread fan for piecing. For quilting I usually use something a little thicker. I like the Aurifil because it is so fine and I get accurate seams when I press. Fabric.com has my business for Aurifil thread. They consistently have the best price and their $35 for free shipping is lower than most. Great fast service as well. I am planning on using King Tut which the local quilt shop sells to give that a try for quilting.