Like all the material I bought from Dan Coleman, this is very useable and high-quality content. Probably my favorite of his releases so far (I own them all) as I am always looking to add NPCs to an existing adventure I'm running (Princes of the Apocalypse). It's presented with just enough flavor text and stats for each NPC to use as is, or get inspired to fledge them out even more. In my opinion it sets itself apart from many other products on DriveThru by having 1 full page for each NPC, a clear layout and the quality of what's written. I also get regular updates in my mail (can be turned off if you like) with new versions of the material to be downloaded. The NPC Codex now includes 7 new NPCs I didn't have before, for no additional cost! Highly recommended.