After having both run and played this game, I can say it's honestly pretty amazing. Meets expectations of a technology mod with robots and *very* cool tech items on the cert, without boring the players and GM with 6 robot combats.
Has probably the second coolest NPC I've seen to date (behind Valais) who lets PCs with no tech skills still complete the mod and leads to some really awesome RP opportunities. And if there does happen to be a technologist on the table, both the technologist and the NPC are still very useful in ensuring the scenario is 100%ed.
Uses haunts really well, ensuring almost any PC has at least a chance of shutting them down, with amazingly cool descriptions of what they actually do and effects that mimic what's going on really well.
The final fight is super cool, with skill checks to goad the BBEG into making themselves vulnerable before a really climactic fight against an awesome villain. Has been a real threat to PCs both playing and running the mod, without threatening a TPK.
Perfect flavour, perfect delivery on promise, perfect difficulty level. Please make Isabelle write more scenarios, I'm itching to see more of her work (for those curious, #1 is Rats of Round Mountain Pt1).
Went through this one yesterday at high tier 4 player. No PCs died (just), but we felt pretty challenged despite decently optimised characters.
Good: varied combats beyond the typical undeadfest one might expect of the Gloomspires, some interesting items lying around, cool set up to first fight, interesting finale, heaps of monsters I've never seen, sevenfingers continues to traumatise my poor inquisitor by reminding her of her father. Continues to deliver on the spooky horror dungeon that is the Gloomspires.
Bad: those fights are rough. Looked up the CRs later, and there's two CR 11 fights, and two CR 12s is extraordinarily high for what's supposed to be an average 8th level party. This includes a fast bombing alchemist, who are always at risk of killing unconscious party members with splash damage. Draining PCs of multiple different stats across encounters and therefore requiring multiple restorations is also a bit brutal. Definitely see why this game has killed a few.
It seems almost like what's in there should have been offered to players as the game's hard mode, but as is this mod is pretty brutal.
Played this earlier this weekend and had some of the most fun I've ever had at a PFS game. Played my shadow oracle (essentially the perfect character for the plot) and had an absolute blast every encounter. Loved it start to finish.
The only issue (and only reason I haven't given 5 stars) is because it should really come with a warning about the optional rule set being used. Both myself and the GM had read through it pretty extensively, so it wasn't too hard catching the other players up to speed and guiding them through the dueling process, but without that warning I imagine the gameplay could have been ground to a screeching halt. PFS Scenarios that contain optional rule sets like this should probably contain a note in the blurb so players can at least skim the rules before reaching the table.