These needles are excellent; noticeably outperforming the many other circular needles I have tried over the years, both in durability and performance (and definitely in versatility!). I have used the Addi Click Turbos for about 5 years, and together these sets (Turbo, and these Rocket/lace tips) offer me 95% of the needles I will likely ever use. I recommend watching the Paradise Fibers video detailing the differences in the sets, but I think virtually all serious knitters would be pleased to have some Addi Clicks in their needle collections. Worth the investment!