Mixed bag. Core 1-1 through 1-3, while linear, are all pretty well paced and they all end with a bang. Core 2-1 feels like a 5 in 1 intro module, but the scenarios and roleplay are varied and memorable.
2-2? This is not what I expected, and not in a good way.
The good stuff: The story award is cool (the Author is good at this) and the core premise is cool, and the structure of the mod is logistically sound
The bad stuff: Editing issues (listed as APL 1 AND APL 3, incorrect treasure listed, the sigil handout, a reference to a slope that that doesn't exist on the map) Extremely disappointing rewards relative to the high potential lethality of the mission (a party of level 1's have a very low chance to walk away from the final encounter) , wonky pacing, and, frankly, I expected more than the "investigate the mine, 3 fights" formula from Oubliette of Iron. The best hook of the entire story (" The Faithful") is wayyyy too easy to miss, and doesn't effect the outcome at all - there could have been some good RP and and mechanics built around this. The illusion maze, which is basicallly flavor as written in the module (it takes 4 hours). Huge missed opportunity here for a puzzle scenario.
I replaced Parabald with Trushee, because there's no reason the guy hunted by the Cyric followers and nearly assassinated by a shadow demon is gonna go back and try to infiltrate their ranks.
DM's, do something with the maze, make it mean something.