SPOILERS AHEAD
I think the gameplay, graphics, and musical scores were all awesome, but i wish they had gone a different route regarding Joel. He was such a huge impact in the first game and it was such a terrible route to take killing him off so early in the game. I feel as though they should have killed Dina in the beginning (controversial I know) and then had Joel and Ellie join back together for their fight agajnst the former fireflies.
The reasoning behind them killing Dina could have been, that she ran with their group and betrayed them to escape, this would give us a good narative yo go off of and still give a good reason for Ellie to chase after them without needing to resort back to the Hospital in the first game.
Abby's story was great, but i feel as though it would be better if it were a seperate story from Ellie and Joel.