Just finished Horizon Zero Dawn. Great game overall. I have to say, it unashamedly borrows from a number of previous games: mainly from Far Cry and Tomb Raider, but also from Witcher 3, Uncharted, Skyrim, and even a little bit from The Last of Us. Nonetheless, the whole is definetly greater than the sum of the parts: great story, great main quest, amazing and gorgeous open world to explore, gameplay is great, and the boss fights are some of the most challenging since the Dark Souls series.
It could have truly been a GREAT game, up there with Uncharted 4 and Witcher 3, if not for three weakness: 1) Skill tree: basically the Far Cry skill tree, which it to say, flimsy and inadequate. You get to choose from 36 total skills in this game, none of which are upgradable; contrast that with say, Fallout 4, where you get to choose from 70 skills, almost all of which are upgradeable. 2) Loot: again, very poor selection of weapons and armor to choose from; wish they would have given you the breadth of weapons that you got in a game like Witcher 3; and finally 3) Glinthawks: they will drive you crazy. Hopefully the neighbors don't you hear you shouting and cursing when you have to fight these bast*rds.
Overall, though, a great game, one that I would highly recommend. 9 out of 10 stars.