Just finished reading Broodmother Skyfortress for Lamentations of the Flame Princess. It's an excellent book for those interested in OSR games, being part adventure, part high quality GMing advice from Jeff Rients.
Whether it is the "most awesome adventure ever" that it claims to be will vary depending on your definition of awesome. That said, with giant sharkophants wrecking the place, and an exceptionally weird dungeon in the case of the Skyfortress, what's not to love? The adventure is detailed enough, but really provides the bare bones for you to build it into something greater and more integral to your campaign world. This is something it doesn't shy away from and explicitly encourages you to fill in the blanks, providing plenty of suggestions and helpful advice on how to do so without expresdly telling you what to do. GMs looking for something they can run straight from the book are bound to be disappointed, but Broodmother has the capacity to open their eyes to a whole new way of how to approach a published scenario.
Jeff's advice, which comprises the latter half of the book, is varied enough to provide material for pretty much any GM. Even if you don't find yourself using all of it, it is very much worth reading through. The writing style is lovingly conversational - it's as if you could imagine Jeff sitting across from you giving pointers on running a great OSR game.
Definitely recommended reading.