First of all, good popcorn movie, if you are hardcore fan of marvel or visual effect in general, this is a movie for you.
However, it is clear that imagination of Marvel studio keeps deteriorating. The process and ending is clear about 10% into the movie. Zero development of character. Amateur plot twist. All cliche and low class humor. It is 21st century and they still cling on adult fairy tale and plain visual stimulation. The whole purpose is to let fans know what happens to the character. Good business investment but great shame to the art of movie industry. It is a blatant exploitation of grandpa IP with zero innovation.
Hero fantasy lived in half a century ago. Time to learn from modern Japanese manga and anime (I am not talking about One Piece or Naruto). Stop stitching up individuals from different background and call it a universe, it's laughable at best.