Urgh. I really didn’t enjoy that. And, without spoiling it for anyone else, I can’t really explain why.
I didn’t get used to the two-person, two-sticks controls. The camera caused a few issues (in the snowy area, specifically, and on the final “boss”), and it was far too easy. But they are not the reasons I didn’t like it.
No, it was the story. The last bit of the story. Far too grim for me, especially the bit you do immediately after reaching the top of the Tree of Life. After I’d completed the game I genuinely wished I’d never played it. Horrible. Even worse than that bit in Prey.