Concept: “gutter_PUVNKS is a fresh supplement for CY_BORG. You'll get all you need to explore the city of CY, even if you really don't want to. Locations, encounters, NPCs, adventure, two new classes (BROKE CEO & CY_BORG), and a few odds and ends.”
Content: 48 pages of content: NPCs, cults, a radio station, locations throughout CY, random encounter tables, infestations, “broke CEO” and “cyborg” classes, and (amazingly!) more.
Writing: Tons of detail on each page to provide GMs and players with numerous possibilities; writing style oozes the essence of Cy_Borg: thematically grimy and vile and also compact rules/mechanics explanations.
Art/Design: Layout and aesthetic choices for each section are as varied and imaginative as the writing, contributing significantly to the fullness of immersion in the game universe and vibe.
Usability: “Consistency” is somewhat relative here–although there are many different layouts, aesthetics, etc., there are similar gestures throughout: highlighted headings/labels, text size to reflect hierarchical relationships between content, etc. so that navigation and identification of desired info is enjoyable rather than frustrating. Contrast is high throughout as well; only one page has a busy enough background to potentially slow reading.