Me personally, I have not. I'll be honest, I will probably never try it. A quick search here will come up with 20 plus negative experiences with it. That said, the same thing can be said about Berkley Vanish. I've had some decent luck with a test spool I got, but due to the track record of it, I won't recommend it. Same goes for Nanofil. I suppose if you were not worried about loosing a big fish or fishing for money, give it a shot.