Yes, there are people that use them here.
I have them, but never use them anymore. I found that the cable wasn't really flexible enough for magic loop and that the smallest cable/needle combination was about 17 inches and I prefer 16 if I'm not using magic loop. Overall they are nice needles and easy to attach to the cable though so many people do enjoy using them. (I use Knitpicks Options Nickel plated or occasionally Harmony wood)