I struggled with giving this 4 or 5 stars and eventually decided on 5 with a caveat (below). As a product - an old school adventure "megadungeon" I give it a 5. Personally, I love the geomorphs and being able to easily insert my own sections to the base campaign... so that's a plus for me. The caveat is with the PoD version. I suspect this product is at the upper edge of page count for what DriveThurRPG can produce. My print hardcover does not have good binding - it started with 3 places in the book where there was a noticeable gap in the binding - I can see the glue used and there is a crack between the pages... and with extremely minor use (it's stat on the shelf for all but a handful of openings) these breaks in the spine have increased to 5, so the physical version is not up to long term use (or even any short term use) beyond looking nice on your gaming shelf.

This is not only an amazing series of adventures, but also a top drawer setting material as well. You even get VTT suitable maps if online play is your method of playing. The environment is beautifully made for low level play and has a significant number of seeds for future activities.

A preview of what you're buying, even a few excerpts, would IMO be a good idea, but these products seem to be well reviewed.

Nice little adventure. I'd like the map to not be cluttered with colour blobs so I could use it in on-line play via Fantasy Grounds.