I have been using Power Pro braided line for a lond time and have been very satisfied with it. On my last trp to Florida, I stopped to my usual baitWhen i asked for Power Pro, he asked if I had tried J-Braid 8. He made his sales pitch and I had him spool me up. This stuff is going to make the folks at Power Pro lose a lot of sleep! It's cheaper, the knots are just as strong, it is very limp, so it does not have memory and is silky smooth, so it casts extremely well.
My only dislike about it, is that it made in Japan. I would very much rather support my own country. If you are due for a refill, you might consider giving it a try.