As with prior Malhavoc releases dealing with magic (Eldritch Might) and fighters (Iron Might), Roguish Luck expands upon the activities of everyone's favorite highly-skilled D20 class, the rogue. Incorporating several different versions of rogues from fantasy literature, as well as modern criminal sensibilities, this book is a great addition to any D20 library. I hadn't read anything by Wolfgang Baur before this, but immediately sought out other materials he wrote after reviewing this book.
I've used Roguish Luck several times in campaigns and players have always appreciated the extra flavor and texture that this supplement provides. My particular favorite part was how to construct a crime organization - everyone likes being part of that sort of thing, or to fight against them, or perhaps both.
As always, the quality of the PDF is top-of-the-line. You can always count on Malhavoc for that. There are no particular added electronic features.
[4 of 5 Stars!]