Not sure about my rating. Nevertheless, the movie was pretty great.
Despite some problems in the script and the same "funny" jokes (that are pretty much the Marvel formula), this was an evolution for the cinematic universe, which was already declining.
What really changed the game, for me personally, was the fact that the character development is more complex, making it different from the first one. Emotion is the difference between a superficial movie and a deep one.
Also, FUCK! CATE BLANCHETT IS A WOMAN.