This setting brings grit and darkness to D&D, with the added mechanics and dark, sombre tone. The extra crunch adds a level of sophistication and flavor to the game and the fluff matches the feel with unique subraces, magical items and equipment. It's perfect for people who want something different from the usual D&D gameplay at their table. The layout was well-organized though I feel that the additional of more art would help in setting a better mood and evoking the right themes by kindling the imagination of the reader.
Overall, this is a good setting, which can become great with a little bit of added production values like evocative art and supporting design.