The story is well thought out, and is following a unique path from modern anime/manga. If you like stories where the main character is overpowered, but not too overpowered. Not shy, and doesn't hesitate to act then Berserk of Gluttony does not disappoint.
The art inside is simple (lightnovel version) and the art in the manga is more advance compared to the light novel, but it is still simple. I have seen both.
Some of the side characters say the same thing. "Yay." This is why I took a point off. But this is only minor in the story.
Overall very well done light novel. Especially since this is the authors first published work.
Review of Light Novel 1 Berserk of Gluttony.