I chose it because I'm an idiot. Lol. It was a rush job, the binding was a very vivid teal and I had no Bottom Line anywhere close to that color. So I grabbed the Gutermann. As I said, I'm not a hand quilter, so I wasn't aware it was a hand-quilting thread, but I'd heard other quilters say good things about it, so I picked it over the C&C. Boy, was I sorry. It wound and tangled, and when I applied Thread Heaven it got worse.
Thanks for the info, now I know better!