I've used it for 2 years now, 50#. No problem. Jigging, plugging etc..in surf and canal. I have my 3 reels and Tyler's 2 spooled with it. Casts well, haven't had a wind knot in 2 years. I like the stuff myself.
Watch his hands when he is swiping the Sufix. He takes a couple swipes and then wraps more line around his right hand. looks like he might be exposing a different bit of line to the rock. Even so, the Sufix definitely looks tougher.
I wont be able to put it through its paces and give any real opinion till mid summer, as I'm still recovering from shoulder surgery. I had a good conversation with one of the guys at the SWE, and he gave it high praise and said he likes it. Same thing Andy... praised the increased casting distance and very few wind knots. I've always used PP but decided to try the Samurai braid on one of my other reels too. Be interesting to see how they compare.