I've only been disappointed by maybe 2-3 MCU movies out of like 20.

For me, most of them fall into the category of either top ten superhero movie quality (i.e. Infinity War), or One-and-done flicks that I just don't need to see again. This was in that latter category, along with Dr. Strange, the first Captain America, etc).

Again, I am interested in seeing whether Brie Larson will be able to grow into the role enough to carry the MCU when the old heads exit.