Some thoughts after finishing the campaign.
A) Whoever wrote the original PnP module is a fucking sadist. Some of the monsters you fight are the kind of things that only a DM who completely hates his players would dig out of a monster manual. Swarms are bad enough but have solid counters. Mandragora swarms might be the most awful thing ever conceived. Fey as an enemy in general is kind of a fuck you to your players, especially the Fallen Hunt and double especially Fallen Hunt Monarchs. The armies of ghosts with class levels in the endgame are pretty rude too, especially considering the scarcity of ghost touch. Honorable mention to the Weretiger rogues in one of the early boss fights of the Tenebrous Depths whose pouncing on my flat footed back line forced my very first reload.
B) Game is still buggy as shit, I can't imagine what it was like at initial launch
C) I can see why some of the special endings have such a low achievement rate, a single failed perception check at the wrong time can fuck you out of So Shall You Reap along with all the other ways to screw it up and Tricks in Time must have been discovered through datamining lol.
D) I jokingly whined about the abundance of neutral enemies but there were enough evil baddies to completely wreck with Mark of Justice that I was satisfied, like Ilthuliak, the Spawn of Rovagug, or even that named Anus Hag near the end.
I definitely understand the loyalty that players have towards Owlcat now despite what a fucking mess their games have been at release, so few studios make games like this anymore. I've heard Wrath of the Righteous gets pretty verbose but I'm looking forward to it.