If you already have the Necessary Evil book, you will not find anything really new in this book apart from some realy neat rule options (like streetcosmic level of play, power distribution rules and etc.) and some colourful NPC's including Baba Yaga.
Yet if you don't have NE, this book is a must for anyone who loves comics and wants more super in the old vanila superpower background. All powers are well written and as usual for SW can be adjusted on the fly. I got some really nice stories by incorporatin this rules in my WWII campaign and Sundered Skies.