As a lifelong fan of the works of Hayao Miyazaki, I would consider The Boy and the Heron to be the best movie of his career. It is perhaps a bit more challenging than some of his other films, but I think that's part of what makes it so engaging. It's not easy to just absorb in one go, but it's embedded with textured emotions. It's a fairy tale about processing grief, life and death. When I first saw it in theatres, I was thinking about it for days. The animation is just as good as you'd expect from a Ghibli film directed by Miyazaki. Particularly the opening sequence of the film. And the minimalist score is a standout for composer Joe Hisaishi.
I ordered the steelbook, and love the gorgeous packaging. I have a few Ghibli steelbooks now, and this one might be my favourite for the artwork.
Now, 鶹 stupidly files all reviews for a single film, despite the fact that different releases or editions of a film might have different disc transfers, bonus features, etc. That being said, whether you buy the standard blu-ray, or the 4K UHD disc, you'll get a fine transfer of the film either way. (also both editions are combo packs, the 4K comes with the blu-ray, and the blu-ray edition comes with a DVD) I would happily give 5 stars to any of the three releases of this film.
The film has a modest selection of bonus features (including the complete storyboards, a standard for almost all studio Ghibli home video releases). The film has both a Japanese track with literal English subtitles, and a dub. I prefer to watch any foreign film, animated or live action in the original language with subtitles. That being said, the English dub is excellent (particularly Robert Patterson as the Heron)