Totally worth $0.50 for the maps alone, and the PDF guide is good too! One is labeled the other unlabeled to print a battle map. It'll save an efficient DM at least several hours and is a great 'side quest' dungeon to stick into any cave system or underdark-style campaign.

For a busy GM like myself, this quick dungeon can be a godsend. Not to mention that at fifty cents you just can't go wrong. The suggestions are excellent and the creatures inside the lair are perfect. Highly recommended. If you intend to print the map to make a battlemap, I recommend opening it in paint and resizing it to 80%. That way it scales to nearly 1" squares. Enjoy your game Matt