My quilter friend who is teaching me only uses Aurifil thread but when I saw the cost, well, with me being a beginner and on a budget, I cringed a bit. Was researching online and found this very interesting comparison chart.
Coats & Clark thread vs quilting thread

I'll have to order the Aurifil if I decide to go that route, but it looks like it may be worth it from all the positives I've read here on the forum.

Bunny