The cover illustration is hilarious, and the maps (whilst perfunctory) are very smartly done. The miniature dungeons and varied in tone, which means there's likely something for everyone in here. The author is blissfully concise, which is a talent rarer than you might think. Exactly what it says on the tin, and a good job of it. The monster challenge is pretty on point, too.
The presentation is neat, but the aesthetic is arguably a little threadbare. The villains could perhaps do with a touch more personality to make the dungeons more appealing to run.
Overall, it's a promising collection of mini-dungeons that any DM might find useful if they're caught short for a time-filler.