I agree, the Jury is still out. We are women and we enjoy an assortment of choices. I am from the old school and saw what Poly thread did to quilts made in the 60s. But I realize that there has been a great improvement to the quality of thread during these past 50 years. But I am still stuck in the 90s and mostly exclusively use Mettler silk wrapped thread for both of my piecing and quilting. That is what the dealer told me to use when I bought my Bernina and I have never had a thread problem.