Its just okay, but for the price it should be better.
It looks good, and it works but it stops just where it would be the most useful. It adds up the results of the rolls but doesnt give you the actual result after the symbols cancel each other out. For those unfamiliar with the system basically what you need to know is not the total number of each symbol rolled but the number of symbols left after their counter symbols cancel each other out. Its not that I cant do the "math" but at least with actual dice you can take the canceled ones away and quickly get your result, for $5 this app should do this for you.
FuriousGreg about
Star Wars™ Dice, v1.1.3