I am a huge fan of Miyazaki but hell no, this is not the Miyazaki movie that one would expect to watch. Instead, you get a movie which has no storyline, no buildings of characters relationship or even, characters have no characteristics at all.
The visual effect is unexciting, not even on par with Miyazaki's 20 years ago old works.
About after watching 3/4 of this plain, dull, bland, soulless movie, I fell asleep.
Miyazaki should have stopped after the release of "The wind rises" in 2013.
The Boy and the Heron tainted his reputation, which is a regret if not for himself, but for his loyal fans like me.