When i first discovered Varivas 2 iCasts ago, I thought that their mono's were the best thing I have ever felt.
In terms of braid, they are awesome, but I don't see them at a huge advantage over the traditional brands if they are more expensive for less line. I haven't tried their casting PE, but at the same time i'm rarely looking for max casting distances.
If you do want some special colored braids and markers, they are one of the few companies that have them. Very helpful for flipping and linewatching or deep dropshot.
All their measurements are done in canadian though. lol.
Also, buy slightly heavier line if you're not familiar with japanese lines. If you typically buy 15# braid, do not get #1.5, i'd probably bump to 2.0 or 2.5