The ending was great, good story overall. But the game itself is just bad. Especially the AI and the stealth mechanics are just awful. Also QTE's shouldn't be in any modern game, stop doing that shit. So yeah, don't buy the game, or waste your time playing it, watch it on youtube instead. Because unlike the Uncharted series, this game has a good story.
Also check two is a gigantic stuntvagina and will probably edit this post too.