When comparing AoU to other Marvel movies it wasn't the best to date, but it was certainly better fare than the majority of everything else out there.
The opening sequence was incredible, and overall I thought it effective, a very good film. If Avengers II suffered it was from the standard "more is better" pitfall which plagues sequels. There are moments in the film which are classic Marvel and truly epic. It does change the direction of the Avengers and sets up the movies to come quite well. However the story does drag a bit, and Ultron came across more as Doctor Evil than Colossus. The death in the ranks isn't the one most people would have thought. The film also shows signs of the inevitable effect of the law of diminishing returns.
Visually it had its moments, but it wasn't near as visually stunning as was Guardians of the Galaxy. The action sequences were effective, but it was mostly action for the sake of action and lacked the purpose of Captain America The Winter Soldier. I will say the panoramic sequence featuring each character during the final fight scene was almost worth the price of admission just in itself.
I can guess how Honest Trailers will approach it, as the end of the movie was a bit reminiscent of the first. The mid-credit scene was uninspired. And Nick Fury just happens to show up at exactly the right time with an old helicarrier equipped with a bunch of made-to-order rescue craft?
Still, worth every penny to see it.
I liked what they did with Hawkeye's character. For some reason many fans of the Marvel movies and the Avengers in particular felt Hawkeye should never have been included, but I disagree. I have thought him a great character, well played. Many thought he would die in this film just to remove him from the starting line-up, and I think what actually happened may have been a way to address that issue without killing him. But as someone else said he is slated to return.
Prior to viewing I thought the whole Hulk-Black Widow relationship was a result of Wanda's mind tricks. Wanda bewitches Natasha, Natasha bewitches the Hulk in order to turn him against the Avengers. Not so as apparently they are an item. But then he is a rage monster and she is barren, so it probably won't go anywhere.
The whole Scarlet Witch dream inducing mechanism was, in my opinion, just a convenient vehicle to introduce elements of future films. But if so it was effective, and necessary. I also thought her character played in accordance with the comic history. She wasn't called a witch for nothing.
I was impressed with how they used this movie to set up phase three. Captain America Civil War was particularly addressed, but so was Thor Ragnorok and Guardians of the Galaxy Two.
Leaves you wondering who will fight Thanos in Avengers Three.
For any on the fence I advise going to see it. If you are going to spend 13 dollars on a movie, this will leave you feeling it was money not wasted.
I found this GIF, thought I would share: