There is no doubting the spectacle of Avengers: Age Of Ultron. They even manage to give quality screen time to just about everyone involved too, which is impressive, even if things do drag in the third quarter of what actually feels like a non overly-excessively runtime.
Marvel films do feel like the product of an unstoppable behemoth that consumes the cerebral and satiates the senses, and if you can live with that, everything is fine. Basically don’t think too much, enjoy, move on. Have to also say; I’m still loving Cap.