Concept: “A collection of frog-based tropes”
Content: An encounter setting with stats for frog-men, special items, and a frog-man class
Writing: Straightforward in its descriptions and exposition of mechanics
Art/design: Relatively conservative but with plenty of color and character
Usability: More of a toolbox for the GM to use rather than a prefabbed adventure

Concept: The title pretty much says it all
Content: A seriously ugly—and poisonous—toad
Writing: Minimal stats and concise special ability descriptions
Art/design: Seriously ugly toad
Usability: Good for a surprising but not probably not lethal encounter