I hated the menu system. I hated that you can only collect something like 8 bullets at a time. I think I can really carry more than 8 bullets, really. You have all these weapons but can't find any damn bullets! That got annoying very fast.
Also, the environment got really dull after a while. I got so tired of going through Seattle by playing with Abby, I almost not finished the game.
The story was less compelling than the first one. I felt after I started playing as Ellie again towards the end, that she really didn't know or care why she was doing what she was doing anymore, like she was just on autopilot on her quest for revenge.
Abby was an awesome character that was introduced in the worst way possible. I'm sure most people played in her story arc with no love for her but I thought she was one of he best characters! If anything, they should have waited til the end of the game to do what she did.
Very dissapointing game that tried to put way too much in it for the short amount of time that it took to play through it.