Lots to love all let down by quite stifling and linear mechanics that hold the game together. Overly long - at points almost for the sake of it, generally quite unlikeable characters who feel apart/separate from the world and story in detrimental ways. Generally quite shallow locations throughout the game which undermine exploration.

Still - with that said, thoroughly enjoyed large parts of this - and when realising I was locked into/out of certain story beats or that I'd missed something, I felt something I've not felt since I was younger with a limited access to games - the urge to immediately start a new playthrough to further explore and engage with the game.
Biased somewhat since I do generally prefer games like this.

Would recommend playing if you have 8-9 days worth of spare time you want to burn or you have a better attention span than myself. Didn't do the Beneath The Stolen Lands content too as a consequence of the main games longevity. Would return to it (once my queue is whittled down)

Unfortunately for my opinion of Kingmaker, Wrath of the Righteous exists. There are the general improvements you expect from the second game in the same engine. Wrath looks generally better, the camera is so much better returning to Kingmaker gives my whiplash, and, the campaign flows better. However the biggest improvement is the expansion of its character creation systems. Creating builds and optimizing characters is a huge part of my love for the Pathfinder RPG system this is a digitization of. Wrath so thoroughly surpasses Kingmaker in this aspect that it makes it difficult to go back and clean up the branching paths or DLC I missed in Kingmaker.