Fantastic! I changed my needle to one of those aaaages ago, and it hasn't even crossed my mind to change it! They might be slightly more expensive to buy, but if you can get that kind of use out of them it's totally worth it! I think I bought them when I also bought some of their invisible thread and they recommended that you use those needles. I wouldn't normally pay much attention to that kind of recommendation, but I was concerned about using the invisible thread because I'd read it could be tricksy, but there were no issues whatsoever! I always use their king tut thread for quilting as well! I must be a little bit in love with Superior! Haha!