Possibly one of the worst storylines I've ever seen in a game, especially as a successor to what I would consider to be one of the best. Utterly disrespectful to the legacy of the first game and everyone who loved Ellie and Joel and wanted to see more of them and their world, not be preached at and strung along to an ultimately supremely unsatisfying ending.
This game had every opportunity to take different routes that wouldn't make fans of the original wish that there hadn't been a sequel, but instead created a character that was absolutely hatable, made worse by the sparse, vapid attempts to "humanize" her, and tried to present her ending as a righteous act instead of what it was - annoying, aggravating, patronizing, and an undeniable waste of time on all accounts.