QTE- I personally like this new feature alot. I think it was very creative to implement it in the game. The only suggestion I have is to make the QTE white bar more easily visible, maybe changing the moving white bar to the color red so we can better see it move. Other than that, great feature.
Stun Meter- I like the way this feature feels,easy to understand how it works, the only thing I would change is maybe also put the word "stunned" or something similar on the screen when your opponent is stunned instead of just showing the little red bar when a opponent is stunned.
Quests- Compared to the old version, I'm not to sure what to think about it. It does feel more cleaner and organized, but kinda feels like it's missing something still, just not sure what that "something" is . It's still kinda of buggy also, most of the time it doesn't show a notification when a something in the quest has been completed.