I really liked the module. I'm running it as a PbP game on the Mischief, Inc. forums. Besides having the old school feel of a classic dungeon crawl, there is also a bigger story going on that involves the main character. While that story does not come to completion in this publication, you get the feeling that the plot will be continued in future releases.
As a platform-neutral module, it is not married to any particular rule set. But it does offer alternatives for specific game mechanics depending on what type of rule set you wish to run it in. For example, the module presents the monster stat blocks using ascending AC, but in the introduction to the game, the author presents an easy formula for converting ascending to descending AC. There's also information on movement, hit dice, and other mechanics that are ubiquitous to fantasy role-playing games.
Personally, I wished the module was a bit longer, but as a free release, I think the publisher was intentionally trying to whet the appetites of the readers for future paid releases; and I think they did a good job of that. This module definitely left me wanting more.
The layout and art work were really top drawer. You couldn't ask for anything better. As their first product, I think Mischief, Inc. really hit one out of the park with this module. They have definitely set a high standard for future releases. I'm hooked and will be anxiously awaiting new products from them.
[5 of 5 Stars!]