*Spoilers*
Finished a couple of days ago didn't know what to feel at first, sad depressed, melancholy but definitely not happy or satisfied.
While I understand both characters role within the game and their motivation for revenge, i still feel let down.
When Ellie was finally able to remember Joel the way she wanted she stopped the killing. Before that everytime she thought of Joel it was of his dying bloodied face. In a world without pictures all you have are your memories of the person you love. Ellie would rather die then to remember joel like that fortunately she finally found peace. Eventhough she didn't need to kill abby to earn it.
If you never played the series I would recommend to play the first one then stop, dont play the second one make up your own ending to the story, might be more satisfying